Evsever said: "some people here don't seem to wanna push or encourageBroadway to include more diversity and be more willing to make a change. Instead, they just shrug and say "welp, that's showbiz! so deal with it!". It's this kind of uncaring attitude that there's still a lack of representation for minorities, even to this day."
Broadway isn't a thing, though. You can't make it do anything. It is a loose collection of tangental businesses. There are a few dozen theaters, and way more shows floating around looking to land in one of those theaters.
It isn't analogous to Pixar, which decides what stories it wants to tell and then does it, because it controls every aspect of its creative process. Broadway is more random. If a theater has a vacancy, they pick the best show ready to jump into that house. If they have a handful of options, they will pick the most commercially viable option, since they are essentially landlords picking tenants. There are clearly cases of the theater houses backing a production and making it happen, like (ironically) Jujamcyn wanting to stage Falsettos, but that isn't always the case.
You can't tune Broadway. You can tune the theater schools, and come up with ways to support more diverse playwrights getting more grants and opportunities. You can make sure you attend when theaters do take a risk and book some LGBT advancing shows (which didn't happen with Significant Other, leaving an impression that an audience for gay protagonists doesn't exist).
The theater houses are always ready to put commercially viable LGBT shows into their houses. If you're not concerned with the shows being commercially viable, then Broadway is always going to disappoint you when it makes decisions based on commercial viability.