@divVerent If you don't want them confronted with this, but it still exists, all you're doing is setting them up not to be equipped to deal with it once they do. And either way they're still stuck living in a world ruled by adults whose brains are rotted on this stuff. I get that this is all very unpleasant and people want an easy solution, but there is none short of attacking the root problem.
If you think hiding it from children (not with trojan internet passport schemes, which are a non starter, but as a parent or whatever) is best, you do you. I think educating and conveying values to them so that they can see the rot for what it is and be ready to protect themselves and fight it is probably better.