I disagree about their being nothing nefarious. It took people years to realize the extent to which FB was tracking your outside-of-facebook activity. I would even guess that many still aren’t aware. Shadow profiles, etc.
I'm personally just not concerned about being represented by a user ID in a database with info attached to it. Every service I've ever used has this on me and in general I trust US-run public companies with that level of data.
Tech businesses more than most! Equifax leaked my personal info lol, no Silicon Valley companies have.
I don’t necessarily disagree with the sentiment, just trying to provide some perspective.