If you're wondering "how did the #CriticalRaceTheory issue blow up like this?" you can trace the roots to @realchrisrufo, a conservative marketing genius who created the strawman argument around CRT and fed it into the media blood stream.
Rufo knows that CRT, a nuanced set of racial theories is only taught in graduate level courses, and NOT taught in K-12 schools. But he's convinced people, through popular outlets like @foxnews, who has mentioned CRT more than 4,000 times in the last year that CRT is in your K-12
Rufo is also aware that some white Americans are uncomfortable with the social justice movement surrounding the murder of George Floyd. So using CRT, he has managed to turn the decades old theory into a "toxic" brand.