Goosefoot within black communities, there are a variety of viewpoints. I don’t know any black people personally who disagree that racism exists and is fairly prevalent. However people differ on the responses. Some think if you focus on education and a middle class career, that’s the best way to overcome bias. Some people think being Afrocentric in hairstyle and dress is very important, while others say blend in and straighten your hair. Some want to protest, some say better to keep your head down and not make waves.
I'm not sure I've heard many people at all deny that racism exists, but I've heard a number from various racial profiles disagree that systemic racism is real, or more often that it is not a useful way to talk about what it is trying to talk about.
The thing is, a phrase like "systemic racism" is an abstraction, it's trying to describe certain things it believes occur and have a specific kind of origin and relationship to each other. But is it really grouping those things in a way that is helpful?
I think a big part of the reason you may be seeing this now is many social justice causes, including feminism, have been very invaded by critical theory and identity politics. Those are a very specific way of thinking about the material conditions they are referring to, among black communities, among women, whatever. Lot's of people dislike this analytical approach, but the way it tends to treat it's critics, no matter what their disagreement, is to call them bigots of some kind. In fact they may be very concerned about injustices but they don't think they are being described with enough precision.
Feminism has however begun to push back somewhat against critical theory. There is still a lot of it around, but largely because of gender ideology a fair number of feminists suddenly had their eyes open to the problems it has. And once you see this, you begin to see it embedded everywhere you find identity politics, creating all kinds of problems, and you start to question the language and the narrative.
So many of these feminists are not going to just accept a lens or language convention that they see as so destructive in other areas.