If it's damaging to some percentage of users, having more users means it damages more people.
Is your argument that this is okay because some people also put their health at risk being salt miners?
If your rule is "we can't have things that may hurt some people" then you're going to live in a pretty bland world. Gonna be especially tough without water.
Kind of a bad excuse to be honest. I do think the damage is exaggerated and at some point users are responsible for themselves and their media consumption and many are probably happy with that.
I don't use Facebook and in my county Whatsapp is sadly very widely spread and it is noticeable that people express concern about missing something if they don't install it.