At least here in the US, if you want to stop the billionaires, you have to stop voting Democrat or Republican. (Except for DSA's.) Both ruling parties are wholly owned subsidiaries of the billionaire class, and you've seen how candidates who actually intend to tax billionaires are treated. AES and Zohran were called radical Islamists. Platner had an SA allegation weaponized against him. Others have had tens of millions in both Democrat and Republican money used against them.
So, I'm skeptical, but if these two dozen or so DSA candidates get elected, they could throw their weight around a little.
The more likely scenario is that one of these AI companies is the cause of something truly catastrophic. Maybe a Waymo decides to drive a whole family off a bridge. Maybe an AI-enabled police drone tries to stop a school shooting and kills 50 children in the process. Maybe a model goes rogue and a power grid goes down in a major metropolitan area and does such a great job of fucking it up that it takes months to repair.
I hate it, but that's what it's going to take most likely, just like how we don't get any meaningful infrastructure upgrades until a bridge collapses or something.
Do yourself a favor and don't give an AI agent any of your info or authorize it for any of your accounts. At least that much will help you defend yourself in a minor way.