Most Americans in such a situation would wind up defying their ancestors in similar ways. A lot of families in the USA can trace their lineage back to people that fled religious persecution, racial injustice, famine, war, and tyrannical government. Migrating to a dictatorship that is currently drafting/conscripting their populace straight into a shooting war is a monstrous step back from all that.

Nevermind that the Russians have/had nuclear stockpiles aimed at our heads. And the USA has Russia targeted in return. Come to think of it, choosing to be down range of the US is not a good idea in general.