Another possibility is that the uber-rich techbros can see that, if we keep heading the way we're going, the whole thing comes crashing down. We've been speedrunning a far-left utopia for quite a while now, and it's not going well. Whether it's some kind of currency collapse, internal civil war, or something else, this is a death slide towards something bad.

Assuming that's the explanation, then radical change isn't surprising. How radical can be argued, but turning the rudder on the ship of state can't be.