It's called Adult Swim, for a reason. If you're incapable of performing at the bare minimum of parental responsibility, that's your fault. Not societies fault, not TV's fault, not public schools fault, your fault. And quite honestly, I feel sorry for your children, because clearly you're a worthless example for them.
There are also parental blocking features in virtually every cable box out there. Again, this is a parents responsibility, not anyone else's. If your child turns out to be a monster, that's because you failed as a parent.