I’m not going to hang my whole security on a single key, if I’m afraid of a state actor, is what I’m personally getting at.
But let’s be real, like you just said, most compromise is human. Social engineering. Passwords and SMS (and even non SMS) 2FA is just too easy to talk someone out of. A strong hardware key stops 99.9% of breeches in their tracks.
But yeah, I’m sure the state has a way to break a Yubi. Let’s be real, a pair of pliers and some sodium pentathol will break me much cheaper.