(Disclaimer: I've mostly watched Whose Line is it Anyway UK from the 90s, but I've seen a fair number of the Drew Carey episodes and a few of the Aisha Tyler ones. And I do love this show unconditionally.)
I completely understand the point of view that a lot of Whose Line is homophobic, especially shows from the earlier days. But I want to explain something.
Yes, none of the main cast was queer irl (though some guests were), or at least not out at the time. Yes, basically they played being gay for laughs. There are a few reasons for this that I think aren't entirely invalid:
- As a predominantly-male ensemble, there were inevitably scenarios where a guy would have to play a female character and/or the romantic interest of another guy, such is improv.
- Even when there were female players in the show, the male players weren't as physically comfortable with them as they were with each other. There must have been dozens of times that two of the guys kissed (and also the Josie/Caroline boob grab is a classic!), but was there ever a M/F kiss at all? [Edit: Yes. Yes, there were several apparently. But it was definitely less common!]
- As a live(ish) show, they reacted to audience response, and the audience always responded very enthusiastically to the "gay stuff" so they went there a lot, that's show biz.
So here's the thing. Although maybe not everything they did is unobjectionable by today's standards, I think it was an important step at the time toward queer representation. Even if none of the actors was queer, this show still played holy hell with gender roles in a way that hadn't really been done before on mainstream TV, at least in the US. And audiences were there. For. It.
This was a time when you hardly ever saw a same-sex kiss in a normal primetime TV show, but it would happen in this show, and the cheering would bring the house down. The "gay stuff" was funny, it was supposed to be, but it was more than that. People wanted to see it. People wanted it to be out there in mainstream media. The jokey, silly premise let it get past the censors, but once it was out there, it did something else. It normalized. I really think it helped pave the way for better representation.
(Which now lets us look back on those old shows and think how cringey they were. But that's one way to measure progress, is what I'm saying.)