All the clever bootlickers remarking on how Canada could help "tilt US politics to the left" by allowing annexation really don't get it.
The US has never dealt with Canada in good faith, and they certainly wouldn't be any better as overlords. We wouldn't be the 51st state, let alone the ambitious 51st, 52nd, 53rd, and 54th states I've heard bragged about. We'd be fucking Puerto Rico: essentially a vassal state with no power, owned & subjugated by literal Nazis.