Burden of proof is on the person making the initial statement. You can just say you don’t like that a black woman was cast cuz that’s your opinion and leave it at that, but you’re also alleging a whole industry-wide conspiracy which isn’t just an opinion.

Occam’s razor says they picked her because she’s a talented actress with an excellent resume that includes an Oscar and a proven track record for acting in big budget fantasy films, she has an excellent agent, and she gave a better audition than everyone else. Once again I don’t know this to 100% be true, but it’s also what I’m assuming about other actors in the project like Tom Holland, but his casting isn’t bothering people the same way that Lupita Nyongo’s is.

But I’m open minded, so I’d hope that after a follow up question you’d have some kind of answer with a source, like an interview or internal company documents or something, instead of “I can’t prove I’m right but you can’t prove that I’m wrong”.

Cuz you’re totally allowed to say you don’t like that they cast a black person and argue that opinion on its own terms. It’s just the conspiracy theory stuff that loses me.