You don’t usually have to ask someone if they’re being harmed by a person/substance/thing to see the negative effects it is having on their lives.
Socially media is already known to have negative impacts on adults. This means it WILL also have a negative impact on children and youth. Seeing as children and youth are even more susceptible to negative influences, due to their body and brain still developing, we need to protect them from what we can.
Even if kids are seeing worse things in their every day lives, that doesn’t make it okay to subject them to other less worse things.
Just in case you weren’t aware, updating your block lists in uBlock Origin should fix this problem. It’s worked for me, at any rate.