a. Haig didn't pick the Somme because he wanted it. When he was told by his bosses in London that he was going to launch an offensive to relieve the pressure Falkanhayn put on the French he was forced by the geography of the front to make that BAD choice. He does not help matters with his poor operational understanding of what is going on.
b. Compared to what the British try? The French get pounded but they are not being WASTED.
c. So were the Russians and the Italians. Making a wrong military decision to attack, even at the behest of your incompetent political leadership, (We Americans know about that problem.) loses you more than doing nothing or not attacking. (McNamara / Westmoreland)
d. No, it did not.
e. This claims more for the Somme than can be proven by the record.
Actually, since it appears that I have tried to use the best professional military analysis we have of how WW I was actually won; I think I might understand precisely why one might say Haig was incompetent, Foch is misjudged and why the "British" popular version of WW I is no more truthful than the American one. Please go back and read what is presented about how the WW I generals understood exactly what kind of war they were headed into and why some of them succeeded and why some failed. Look at the "Combined arms" video below to make that explanation clearer, if needed.
1. If the Somme, with its relatively open terrain and easy link with French armies, was a bad choice, then it was the least bad choice. The British wanted to fight alongside the French, owing to their greater experience with this kind and level of warfare.
2. The French army never recovered from the losses at Verdun, especially after the abortive Chemin de Dames offensive in 1917. Afterwards, the French were generally blood shy and unwilling to attack except under those fleetingly rare 'ideal conditions'. Meanwhile, the British went into 1918 with an army whose skill and armament had never been better, and which never suffered from collective indiscipline the way pretty much every other Continental army did.
3. This is just an empty slogan. The costs of a failed attack vs loss of the initiative depend on the situation, not immutable rules, and in 1916 an offensive was an overwhelming necessity. The French army faced destruction if it was not relieved, and without the French army, victory on the Western Front would not have been possible. Moreover, the community of interest is the center of gravity of successful coalitions; standing aside while your allies get butchered undermines this commonality and threatens the coalition with dissolution.
4. Yes, it did; it was the British effort on the Somme that forced the Germans to suspend their Verdun offensive and carry the French to their winter respite. Without it, the Germans would have taken the heights and smashed the French counterattacks; in the spring, there would have been no physical barriers to a drive on Paris.
5. Uhhh the interconnected allied victories of 1916
absolutely caused a dramatic change in the German war effort, as witnessed in the Hindenburg program, the Hindenburg line, and Unrestricted Submarine Warfare. Just look at the timetable; once it's clear Verdun is lost (a direct result of the Somme offensive), Falkenhayn is sacked and replaced with HL, who implement this massive armaments program and completely change their strategy on the Western Front.
I like youtube lectures as much as anyone (watched this one several months ago), but they're no substitute for actual books. And there is no shortage of evidence to showr that the war was won when it was because of British efforts; they blunted the main force of the German spring offensive in 1918, and took the lead role in the decisive offensive in the Hundred Days. The BEF under Haig captured as many prisoners as the other Allies on the Western Front put together,
twice as many as the French under Petain; their breach of the strongest portion of the Hindenburg Line, in Foch's own words, brought the Germans to request an armistice.
Beyond all other disagreements, no one can look at the Hundred Days, or Italy, or Salonika, or Mesopotamia, or Palestine and conclude the war was won why just lobbing HE or letting 'tanks solve the trench problem.' Tanks had only narrow application during the First World War: broadly speaking, they strengthened a frontloaded assault. This was not an especially pressing problem to solve; infantry could already take German positions just fine. Meanwhile, tanks' mechanical unreliability left them unsuitable for far more important niches in the new system of war: defeating counterattacks and exploiting opportunities. WWI wasn't as static as it was because attacking trenches was hard, it was because a defending enemy could commit operational reserves to seal off a break-in faster than the attacker could commit their reserves to exploit a successful assault. The strongest section of the Hindenburg line was broken without tanks; fixation on this
Wunderwaffe is only somewhat more moored in reality than it was in WWII.
There was no cheap way to win in WWI. The Allies were fighting to destroy Prussian militarism; this could not be achieved without the destruction of the German armies. This was an aim of the highest value, but those are always the costliest ones. This is the nature of the offensive; it secures greater prizes, but the attacker must pay up front. Germany would fight until they could no longer continue. Losses were always going to be high, but the Allies decided the price was worth it.
Sure, you can argue for shorter bombardments or more HE or more modest first-day objectives. Getting lost in the pedantry of fire plans and shell mixtures, though, misses the big picture. Britain fought for the security of its homeland and empire against a cruel and dangerous enemy. Its principle theater was the Western Front, the one place a true decision could be reached. There, it built the first great land army in its history. Douglas Haig led that army, turning aside the main enemy's fiercest attacks and landing the hardest blows, smashing their last refuge and sealing the tomb of the German World Empire.
This isn't the end of the discussion on Haig's operational skill by any means, but it must be recognized at the outset to keep discussion in the proper context. You can definitely argue that Haig made mistakes that led to casualties higher than absolutely necessary, but his achievements in command put him way ahead of say Cadorna, who got canned after losing 300,000 PoW in a matter of days. Nivelle's failure led to the total breakdown of military discipline on the Western Front. Certainly, Haig's better than Hoetzendorf, who willfully led his country to a war that resulted in its total destruction as a great power; Grand Duke Nicholas's failures set the stage for Russia's collapse into Communism; Hindenburg and Ludendorff squandered the opportunity of Russia's collapse by pointlessly bringing the US into the war and wasting their best troops, leading the the fall of the empire.