Well, there are also nuanced differences between racism and colorism. Those need to be taught, as well.
My own biggest criticism of CRT -- not necessarily the field itself, but of many of its proponents -- is that people use it to peddle the myth that racism is *only* systemic. We should be teaching everyone to examine race relations in a multifaceted context: systemically, socially, and culturally. But, unfortunately, that would run counter to the prewritten narrative that the Robin DiAngelos and Tim Wises continue to insist on pushing.