People will NEVER stop advocating genocide in response to something far less than genocide.
There will always be ethically challenged blowhards who think a mountain of corpses constitutes a moral high ground.
It's not even that it's bad strategy. Very bad strategy.
The same people who say this, probably have the opinion that Hitler could have won in the East if only he had recruited the Slavs to fight against the Bolsheviks, or had held off on the extermination until after the war. A double standard for sure. They think that the dictators of the world if only they acted a little more devious or smarter in recruiting conquered populations could have succeeded in consolidating their power, but when it comes to modern liberal democracies doing the same thing it's viewed as weakness.
Archibald said:
We should send an ASMP nuclear cruise missile on Raqqa, the ISIS "Capital". Decapitation strike (quite an appropriate word, btw)
Raqqa no longer belong to Iraq or Syria, it belongs to ISIS. So just nuke the whole thing to clean the bastards.
At least the ISIS chief S.O.B (Djiahad John) has been wiped out by an American missile. Thank you Uncle Sam !
Again, bad strategy. They will not be "cleaned" they will just find another city to rebuild and have ten times more recruits and the moral high ground because this is a war of ideology not for territory or resources. There are one and a half billion Muslims on the planet and they are the fastest growing population. Turning them all into enemies, is counter-productive to the goal. The best strategy would be to use as little force as possible to contain the extremists and recruit people who know the culture, can infiltrate and and destroy from within, and strike only when ISIS has lost all popular support and the goal is clear and well-defined. Anything else is wasted effort at best or worse long-term suffering.
I will say something that will perhaps be controversial but France should have seen this coming... with all the prior attacks and the most hardline position in the West (Assad must go, should have troops on the ground after chemical weapons etc) and the highest ratio of bombing sorties against ISIS, plus the engagements in Afghanistan and Mali, the French intelligence service should have been tripled or quadrupled and surveillance should have been much better of radical groups. Tactical response units should have been placed all over Paris with cameras everywhere in preparation for more extremist strikes after Charlie Hebdo, for exactly this sort of large scale attack. They dove in halfway into the military solution without correspondingly increasing the intelligence or surveillance, and this is the result. Either they should have stayed out completely or invested heavily in law enforcement and secret services to prevent this kind of predictable attack, because war is the continuation of politics by other means.