What in god's green earth about limitting social media usage on a daily time-use basis implies anything about targetting marginalized groups? Things that are detrimental to mental health, like excessive social media consumption, aren't magically less-so for marginalized groups.
If anything, such media is a distraction and pacifier of sorts.
The internet was better before ignorant takes like yours showed up. Facebook, tik-tok, and the like invented nothing that wasn't done better previously. Are you really so addicted to all this Web 2.0 non-sense? Of course you are. Get help.