The only way to stop it is buy severing all the cables and blowing up the infrastructure. They aren’t prepared to do that.

It works through Tor, by the way. I had the same experience can’t look at it but I can through Tor. They even have a .onion.

It’s fundamentally unenforceable, even if they tried to do what they’ve done to phones and not allow other OS’s to be installed, you could still get development boxes, embedded boxes, etc that by nature of being what they are could not have locked boot loaders.