Part of the problem is that Hollywood, and maybe all mass media, is genuinely racist, sexist, classist, and any other prejudice that You can name, which is inherent to the way it works. When I say "inherent", I don't mean that it has bad blood with any less privileged group, or that it's dominated by a prejudicial mindset, the truth is that it creates prejudice by its very structure. Prejudice means "a premade judgement of other people", and experience with reality is the only thing that can supplant prejudice. But Hollywood is a microscopic, sealed world that wears the image of this one. It is populated by people that are more experienced with itself than with real life, and needs this sort of person for it to keep up with the demands of its purpose, which is the mass-production of narratives describing everything else. They have to work from prejudices, or they won't be able to do anything. It's clear that the "woke" phenomenon began from factual evaluation of the mass media, and its attempts to correct itself ever since, which have all failed. And when these aliens live in an especially prejudicial world, they will see Our world as being similarly prejudicial, not to mention that they are making that into truth by exporting their prejudices to Our world. As a sidenote; this is part of why these people don't care at all about class. You need someone of the right gender and race, but anyone can play pretend at being a different class in Hollywood, which is fortunate since all their actors and writers are of the same class, You could say that it's a classless society.
