I also embrace pseudonmity, for similar reasons. All my online accounts are pseudonymous, including email.

While state level actors will connect these accounts with my person, it is prohibitively expensive for mere marketers to undertake, particular since I refuse to have a bank account, or use credit cards of any kind. There's no financial upside.

That being said, there are far more important metrics than money, and various parties, including state actors, do find other social metrics of nominal importance that they might dox me. C'est la guerre.

I expect that Russia, Israel, and even France, England, and etc., have been seeking to influence our elections since we began having them. Not to would be reckless. Anyway, the reverse is absolutely, without any doubt the case. The US not only seeks influence, but directly engineers elections, and when that doesn't achieve geopolitical ends, just overthrows governments.

Marines were on the ground at least 27 times in Nicaragua in the 20th Century, for example.

@dana-edwards addresses some of the salient issues regarding privacy, cognition, and related issues in a recent post. I reckon you'd note the relevance of that post to your own considerations.

Thanks!