People on all social media really can't seem to understand that the choices aren't exclusively "everything has a perfect open source, non-profit utopia" and "fuck it, everyone is corrupt so it doesn't matter what service you use."

You are able to do what you can, where you can, to mitigate risks and try your best not to support fascists. Especially when there are a dozen alternatives.

Then again, maybe people are just arguing in bad faith.

I distance myself from companies run by people who say or explicitly support people who say that I don't or shouldn't exist. There are a few other things that make me distance myself from companies, but that one is a pretty hard line. (I'm gender "non-compliant" and on the Autism spectrum among other things that have been explicitly said don't exist, shouldn't exist, or need to be "cured"). Otherwise, I try to distance myself from any companies who explicitly collect and sell my information and other things that I find problematic, but that's not always possible.