The British managed to get all of 7,000 troops
Historically the British reaction time was under a month during the crisis from November-January 61-62. There is no justification to reach back eight years and use their reaction time to the Crimean War as an example when we have the British reaction time for the incident in front of us, yet apparently you prefer to ignore it.
As to the American reaction, I'm really only extrapolating the American actions of OTL. Lincoln et al don't want war, yet until mid-December were apparently completely oblivious to the preparations that were underway in Britain. There's no possible reason for Britain to slow her rate of preparations from what she did historically.
-snip -
...you've yet to point out a single instance of the Americans being 'stupid'.
Expecting otherwise is completely ahistorical.
The British managed to get all of 274 officers and 6544 men from Halifax to Riviere du Loup between January 1, 1862, and 13 March, 1862 (10 weeks); this included both battalions of the entire prewar British regular garrison in the Maritimes and three battalions from the UK. These five battalions (1st, Grenadier Guards; 2nd, Scots Fusilier Guards, 1st, Rifle Brigade, 62nd, 63rd) raised the total British force in the Province of Canada to about 10 battalions (depending on how one regards the RCR), with three more (more or less) left behind in the Maritimes.
Source is
THE TRENT AFFAIR OF 1861, Major WD Campbell,
The Army Doctrine and Training Bulletin, Vol. 2, No. 4, Winter 1999, which seems a rather more reliable source than the
London Times on-line, given that Campbell actually had access to various and sundry official records that the
Times, presumably, did not, even in 1861.
So, about the equivalent of one field division on the US order of battle in 1862; maybe 13,000 troops, including infantry, artillery, etc. Throw in the three Canadian Provincial Volunteer Militia battalions (Montreal Light Onfantry, 1st VMRC, 2nd VRMC) that actually
existed as such prior to 1862, and you're up to 16 battalions, or about four brigades.
Just as an aside, in the winter of 1861-62, the Army of the Potomac (alone) disposed of 14 such divisions, each with three brigades. That doesn't include, of course, the other 400,000 or so US troops, in most cases organized into brigades and the brigades into divisions, in commands ranging from Maine to the Great Lakes to the West to the Pacific. Oh well, 500,000 to 20,000 is what, 25 to 1 odds? Yeah, that looks encouraging.
Stupid? Let's see, the British minister who has
literally just told the Americans that their proposal for arbitration "means war" is allowed to a) communicate with British military headquarters in North America over US-controlled telegraph lines, and then is b) allowed to leave the US via a British flag ship, steaming into a US harbor, and head to sea ... which is where, after all, the RN's North American squadron is expected to be found.
No, that's not stupid at all; it's sheer brilliance, General.
As far as the "Canadians seeing their homes under threat" wait, I thought the Americans were the ones who were so trusting in Britain that even after being told "this means war!" they are allowing the British minister to communicate with his military peers. Which is it, either the Americans are trusting fools
or they are threatening evil invaders? Can't have it both ways...
Considering Canadians rioted or mutined or both repeatedly over the prospect of being drafted for imperial service in both world wars, no, you're being pretty ahistorical. Some Johnny Canucks would fight for the Queen, but only some, based on the historical reality of 1917 in Montreal and Quebec and 1944 in Terrace.
It's worth noting that of the 400,000 Canadians who volunteered for service in WWI, fewer than one in 20 were French. Of English Canadian volunteers, 70% were recent immigrants from Britain.
So, what was the point of "responsible government" if John A. and the rest of the fathers of confederation didn't get to vote on whether making the Province a theater of war for London's convenience, again?
Best,