> An asset that cannot be confiscated by the government

It might be intractable to confiscate bitcoin by attacking the math, but why wouldn't governments just put people in jail until they pay up? With adequate control over the internet, governments would be fairly able to track who's transacting.

Moreover for the vast majority of people on earth would still have basically zero money relative to the emerging bitcoin oligarchs. It would be a grossly unequal society, where there would need to be some non-math-based approach to getting money from the wealthy to redistribute to the less fortunate.