When we first started Ind.ie (now Small Technology Foundation) and took a principled stance against people farming/surveillance capitalism, we received the greatest vitriol not from Silicon Valley folks (although, goodness knows, there was the occasional asshat) but from the open source community. And exactly for the reason you just stated.
@aral Getting blocked by fosstodon doesn't make sense to me, although it is the case that a lot of foss people have one foot in the world of BigTech and so may feel obligated to defend unethical business practices. Get them by the salary, and hearts and minds soon follow.