I wondered if a lot of the miners that get squeezed out of the US could just move to Mexico or Canada? It's likely cheaper and if they can incorporate something and run it remotely or find a hosting provider that could do it for them that'll be most of the battle.

It's possibly both a hit and a gain to decentralisation if it loses ground in the US but could gain it elsewhere. Of course if those miners just slowly start to be stunted growth wise but keep running that would mean mining can still happen and miners can strategise their next move.