> When there's a single ruling party, or two major parties in a system like the USA, the distinction between political parties and the government itself is blurred to point of being meaningless.

That's simply nonsense. The reason you might have two major parties forever is if you start making things like registered voters public. After all, who would dare to affiliate themselves with a third openly if that would lead to an immediate risk of being labeled in all kinds of nasty ways.

If Peter Thiel isn't immune to such pressure you can bet that ordinary citizens would be a lot easier to target.

The government and the citizens of a country are two disjoint entities, even in a 'one' party (that really means 'none') state.

Party membership does not equate to being a part of the government (though the one does not rule out the other).