I think you're pretty much right in regards of the analysis what is happening, but you've subscribed to some propaganda on who is doing what. Because the forces at play in the US are first and foremost authoritarian and to the right (the latter of which doesn't really matter in the scheme of things).
I think this here shows this neatly:
"left" and "right" are solely economic points of view. You could also call them "socialist" and "capitalist". There's nothing in there about "liberty".
If you think there is some great conflict between "authoritarian" and "libertarian" at play there (or even "the Left" or "the Right" are on the side of "liberty"), you've just become the playball of propaganda. Because the only side here that's even playing is authoritarian, and it has won, it sets the policies, and orchestrates the propaganda. Of course it's nice to be able to constantly blame "the other side" for the shit you're doing. Which is what happens. Even if the other side happens to be firmly in your own camp.
Yes, there are people in the US fighting for liberty, but they're not "the Left" or "the Right", they're the ones that don't run your country. At all.