CRT attempts to answer the question, "If racism has been eliminated from our laws and our society, why are minorities still lagging behind in the US?"
(To the disdain of many Americans, nowhere in CRT does it appear, "Because brown people are inherently inferior human beings", which, for many of them, constitutes the only factual information they know about CRT. And to them, that's enough to hate it.)
So, CRT examines the generational and lingering effects of our country's past. What else? Should they consult a magic 8 ball, or read tea leaves?
It is a theory of economics and sociology. It hypothesizes that the lagging behind of minorities is an echo of the past treatment of minorities in this country. And it attempts to support that hypothesis using the evidence. Which is not hard to do, as all of the evidence available supports the hypothesis.
The irony is that, for the pure, reductionist hypotheses and analysis, CRT pretty much assumes that there is no more intentional racism in our society. That no actual racists exist anymore, or, at the very least, have no effect. It holds these things as both constant and as both "zero", for the purpose of analyzing other factors that could and have led to the current state of affairs. For the purposes of controlling the data, this assumption is made.