... No it doesn't ? Unless you have a mindset and education that heavily lean on "same genitals is bad", it really doesn't mater. Or are you gonna pretend you get attracted only to genitals and the rest of the person does not mater at all to you ?
Please educate yourself on gender identity. The whole thing has started becoming bigger in the last few years, I'm not blaming you and making fun of you, but please try to read up on it. It'll likely be explained way better than I could ever try to here.
But in short, even a purely gay guy wouldn't immediatly get a boner in front of this game just because you want to tag it gay. If Gay Guy X loves masculine dudes, it thes mater that Bees have a dick in their panties. And even then, Gay Guy X might not be into the fact that Bees consider themselves females, as he likes guys, thus meaning people who identify as male.
Confusing genitalia and gender identity is an easy pitfall to fall into. But remember this site has the "futa/trans" tag, which is on this game and applies. There's no misleading here.
Trans isn't just "X was one gender at birth but is now fully the other". Trans covers a whole lot of in-between. Hell, the game WVM has a trans character, Skye, who identifies as a guy, but doesn't take any hormones and didn't do any surgery, as he doesn't care about what his body looks like and isn't inherently sexual. Calling him a girl just because he has boobs and a pussy would be extremely disrespectful and even more tone deaf, borderline offensive.
If there was, in this game, characters that identify as males, and were romanceable/fuckable, then the Gay tag would be justified. But there aren't, as Bees fall into the trans category, possibly the trap one, but there's not trap tag if I'm not mistaken. So the gay tag is neither necessary nor needed, here.