When my parents and I left the USSR in 1989, we had to pay to get rid of the Soviet citizenship. At the time, that was viewed as an outrage, rather similar to requiring slaves to buy themselves out. And, in the fact of the matter, it wasn’t far from the truth — living in a country like the USSR was pretty far from being free. I don’t recall the exact amount required, but it was substantial relative to salaries.
US government, in its infinite and humanitarian wisdom, is adopting the best USSR practices but with greater flair. Giving up American citizenship now costs $2350, a good deal more than it did in the USSR. At least it can be done without waiting over a decade and taking all kinds of risks to be allowed to leave. France, with its insane tax policy trends, is on the same path. They appear reluctant to give up well off taxpayers to competing entities.
In general, the difficulties in being a stateless person just point out that the concept of owning people just got modified to favor government ownership instead of private ownership. Such progress!
The similarities between conventional slavery and being a taxpayer aren’t all that close in reality. The similarities I am noting are in the attitudes of government bureaucrats and lawmakers and the slave-owners of the centuries past.