Look around, we are living in a veritable vetocracy.
There is no need for anyone to advocate banning everything. It is a result of aggregate efforts of a diverse set of activists each trying to ban something.
You dislike AI training. Someone dislikes high speed rail, or possibly any new rail at all. Someone dislikes Starship. Someone dislikes new housing or rezoning of their city. Someone dislikes new biotech. Someone dislikes new factories. Someone dislikes new wind turbines. Someone dislikes new nuclear power plants. And nowadays, the fear of harm and doing harmful things is in vogue, so the standard line of defense is to argue potential harms, and given that no activity in the world is completely harmless, the result is stasis and a paper war over everything.
It is as if there was a group of activists who dislike individual letters. Even though Alice only hates H and Bob only hates Q, if enough people do this, the entire alphabet is going to be banned soon.
There is a certain irony in the fact that the Internet, a revolutionary technology in itself, has enabled various reactionary folks to organize themselves to stop their $Nemesis, for whatever value of $Nemesis. Where once were isolated naysayers, a pressure group is now easily put together.