They disproportionately have a basic misunderstanding of what it is:

The researchers asked Americans whether they supported teaching CRT in K–12 schools and whether parents should be able to opt their children out of lessons containing content that they disagree with. Except for political party, the biggest factor shaping respondents’ answers to those questions was whether they falsely believed that CRT embraced principles of color blindness. For example, among those who mistakenly said that CRT was consistent with color blindness, nearly half favored teaching it in schools. Yet among the much smaller group who understood that CRT stands against color blindness, fewer than 20 percent were comfortable with teaching its tenets in K–12 schools. [emphasis in original]