HN user
You could choose not to engage with communities that force you to use platforms that violate your rights. No need to cut anyone off for now, but something to keep in mind for the future.
Rose-tinted glasses. Here's what Mark Zuckerberg had to say about his own platform in 2004:
Zuck: Yeah so if you ever need info about anyone at Harvard
Zuck: Just ask.
Zuck: I have over 4,000 emails, pictures, addresses, SNS
[Redacted Friend's Name]: What? How'd you manage that one?
Zuck: People just submitted it.
Zuck: I don't know why.
Zuck: They "trust me"
Zuck: Dumb fucks