To be fair to its a weird one. She's definitely a black woman or at least half Black. African slaves were brought to Jamaica just like the USA. So obviously she has as much African heritage as any other black person in America, just that her ancestors cut sugar came instead of picking cotton.
So I don't see what the hell people are on about. She grew up in USA being exposed to the same racial issues every other black person in the USA was subject to.
It's not like black people in my country that never really had to deal with racial segregation like Americans did in the USA. She went through it and has all right to identify as a true black person of America. I can see a vast difference between her and for instance a person like Ilhan Omar who had different struggles and different racial exposure growing up as a black woman in Somalia
It’s a long standing Republican campaign tactic (I.E. dirty trick). Hit opponents on whatever they’re strongest on. If they’re African-American and have good racial justice credentials then they’ll hit them on ancestry, so when they talk about racial justice, there will be an immediate reaction from GOP voters of ‘we’ll shes not really AA anyway!’. With Bernie it’ll be about him being rich now and therefore a hypocrite. Etc etc repeat ad nauseum.
They’ve been doing this shit for years.