If there remains one mining pool that does not adhere to these legislation and can be managed in countries that have a political stance towards the United States, then all the other mining pools will be forced to build on top of that block
No, it doesn't. If censoring mining pools have 51% of the hashrate, then they can permanently exclude any transaction they wish. If a normal mining pool mines a block which includes a "blacklisted" transaction, then the censoring mining pools with a majority of the hashrate can simply ignore that block and re-org it out with 100% certainty.