We should probably invent a new term, such as Neo-Marxist, to describe stuff like CRT. I think Marx himself would be nearly as baffled as we are at the weirdness that is modern leftism. That said, I agree that CRT and similar ideologies have their roots in Marxism, but it does not follow that any Marxist would subscribe to these derivative ideologies.
Put bluntly, I think modern conservatives are just being lazy, using the term “Marxist” as a way to inflame others against something without doing the harder work of explaining what is wrong with these new ideologies and explaining their foundational premises and why they are wrong. In doing so they so the seeds for their own failure rather than building an informed opposition to the ideologies they oppose.
Education is like a big fat pimple. It needs to be squeezed from every side.
I welcome anyone willing to do some squeezing even if they can not define the word “Neo-Marxist”.