Definitely agree that not wanting to see this wouldn't have to do with homophobia
if I wasn't gay (and if Luke wasn't in it), I probably wouldn't have bothered to see it at all even with Judd Apatow's name there but that's also because I usually don't watch RomComs at all.
from what I hear, Rom Coms in general aren't as popular as they used ot be in the first place so, without a big star to attract an audience and with it already being more niche due to being gay, it is not shocking it didn't get the best reception
though that's not say I didn't find it funny, which I did