Why do you or anyone besides me (and my partner) get to decide what is ok for my kid to see?

If you want your kids to not see porn on the internet, cool. Don't give them Internet access. You don't need to make the internet worse for me and my family to make that rule for your family.

And maybe if you are parenting your child well, at some point you will be able to trust them to use the internet in a responsible way.