OK, I read her full review. There are 2 paragraphs that she should not have included in a theatre review. As I said before, they belong on the commentary section of the editorial page. They are about the black on black violence in Chicago's black community and not specifically about what happens in the play.
Weiss is a social conservative, but that doesn't mean she's a racist. What she is saying is very provocative, but IMO she is just stating truthfully what she sees happening every day in Chicago. The black on black violence in the city is very complex. There is a lot of poverty, a huge amount of homelessness, rampant drug dealing, and an intractable gang problem. Weiss' comments over simplify all of those factors. Nevertheless, they are legitimate opinions.
Quite frankly, I hear opinions (like those of Weiss) every day from members of my own family and from members of my partner's family, the vast majority of whom are people of color, black, Asian, and Latino. They are conservative opinions. I don't completely agree with them (mine are much more nuanced), but IMO they are not racist.