Actually no, if you are making exaggerated claims such as those people have been making here on RF about Critical Race Theory, it's on you to provide evidence for the facticity of those claims.
Just like, if I were to complain about America's velociraptor problem, it would be on me to provide supporting evidence that this is a serious problem that factually exists. It would not only be rude, but disingenuous of me to ask you for evidence that veliciraptors aren't a widespread plague in America.
Which you of course understand perfectly. That is, after all, in theory the reason why people put up those newspaper articles. (Of course, most of the time, it's just vapid opinion pieces that may accidentally contain references to factual evidence.)
This is just the usual dancing and prancing I've come accustomed to here. Nobody thinks they need to actually substantiate their wailing with facts or even supporting sources. It's all Facebook levels of nonsense hysteria.