This is exactly true. In particular, in Critical Race Theory, an Introduction, 3rd ed. (Delgado & Stefancic, 2017), they affirm their willingness to reject these values as needed: "Critical race theory questions the very foundations of the liberal order, including equality theory, legal reasoning, Enlightenment rationalism, and neutral principles of constitutional law."

However, your comment about American exceptionalism does not remotely follow from the above. You can think that America has been wicked, corrupt, racist, foolish, biased, etc., precisely because you value equality, impartial law, and rationality.

And, given the focus on race and intersectional identity, in practice CRT questions the liberal ideals of individuality.

So there's a real debate to be had here, and one that isn't simply a liberal vs conservative one either.

The Rufo-style propaganda campaign using CRT as the boogeyman around which to crystallize opposition has little to do with this debate. It is shallow, dishonest, and wicked.

But having an honest discussion about the content of CRT is important, and despite your otherwise good summary of both CRT and its opposition, you managed to set up to invite this, and then steamroller over it without even acknowledging that there was anything worthy of thought beyond a simplistic moral call.