I think the fact that folks can get ostracized from trek more easily by fans is that star trek started out as a show that had more social commentary going on in it. It specifically tried to have those plot lines and characters.
Star wars is a samurai western greek heroe's journey movie set in space fantasy, it's not even trying to play with interpersonal relationships on a cultural level. it focuses on personal journeys, rather than social journeys.
The residual of that, is there's not a great place to try and start fitting those stories into star wars; so the most we get is folks trying to expand on the representation of groups in star wars (it's never really a plot point, it's just a way a person is, and it doesn't cause conflict). When they try (like the gambling planet in VIII) it just feels out of place, because that's nothing star wars has ever tried to be a story about. Where as in star trek, their core concept is that it's hard for new cultures to get along with each other (first contact, different space faring species, all that).
So if a person complains about something in Trek, they're complaining about a core concept, not a window dressing.
