It isn’t even slightly difficult to believe - there were a couple of very public examples in London a few years ago, where people were jailed for attacking Muslims with bacon. I’ve literally seen, first-hand, people screaming slurs about terrorism at assumed Muslims on the tube.

I am baffled that you would assume some kind of fictional story as part of a conspiracy aimed at replacing a crew, rather than the much less complex idea that there might be bigoted people in some workplaces.