No, not really. Any sufficiently motivated state actor already can. I would be unsurprised to be able to dox you as a mildly interested individual. It is usually not very hard.
People usually reference things that they are ashamed about as a reason to justify this fear of ID based services. I don’t find this compelling whatsoever. Every platform I’m on that is even mildly associated with identity is more enjoyable and interesting. The idea that the marketplace of ideas is slowed by identity is not something I’ve seen in practice. In authoritarian regimes we already see ways to circumvent internet anonymity. So no, I don’t see the downside.
Open to being persuaded here though, about 5 years ago I would have agreed with you.