My main concern would be that Trump et al are drinking their own kool-aid and genuinely think they’d be “welcomed as liberators” if they invaded Canada. They’ve certainly made it sound that way, talking about how awesome it’d be for us as their “cherished” 51st state, with all that great American healthcare and whatnot.

The invasion would turn brutally bloody instantly, but some of that blood would be Canadian so I’d rather not get to that point.