Not exactly the same as what you find in one-party authoritarian countries like Cuba or Venezuela.

It's not about "illiberal". It's about making decisions outside of the established process. Like the big hole next to the White House. You mentioned tariffs struck down...the Felon has reinstated them anyway. It's not like Castro or Hitler and Pol Pot autocracy. But it rhymes a bit. We have a defacto king doing anything he likes, whether or not his actions get "shot down" (often too late, but even when not too late, he just ignores it).

I don't wish to diminish true autocracy, but it's a mistake to not call out when we're on the road before we actually get there. History has several examples where people let things slide, and then looked around saying "WTF happened". Putin is probably the most recent example. Russia was a democracy, and then it wasn't.