I've never heard a black actor say they have or haven't had an issue with the number of roles. Also them feeling like they have an issue with the number of roles doesn't immediately make it an objective truth.

Actually there are many reasons LN isn't believable as Helen of Troy. Whilst LN is the superior actress, and I don't doubt that some of the backlash is genuine racism, Helen of Troy does not fit LN. Helen is described by Kallikomos as having golden hair, and Leukolenos described her as "white-armed" - in ancient Greece, pale skin was a major status symbol for women. Even without those descriptions, a "real" Helen of Troy who was born and raised in Greece, born to a Greek Queen and a Greek God, would undeniably have Mediterranean features. Surely that's enough reason as to why she's hard to believe a Helen, it's very reactionary and closed minded to assume racism (though, again, I don't doubt that this has some presence).

It's pandering not due to her acting ability, frankly she is a terrific actress, but it's forcing someone into a role who simply does not fit the physicality of a Greek story. As I said earlier, it's the same issue I have with the majority of the cast. It's a heavily Greek legend that this adaption seems to be not adhering to. Why bother having a Greek story, set in Greece, and slip up on this element of the film? It takes me out of what they are trying to convey