> They are too big to fail but they aren’t too big to have to pay out a huge settlement. Facebook [...]

I think it's pretty clear from history that they are too big to have to pay out a huge settlement.

First, they never had to. There was never a "huge" settlement, nothing that actually did hurt.

Second, the US don't do any kind of antitrust, and if a government outside the US tries to fine a US TooBigTech, the US will bully that government (or group of governments) until they give up.