I'm not sure if referencing Eric McCormack helps here. The people who take issue with queer, are quite likely to also take issue with a straight guy playing a gay character.

Eric was great as Will though and he’s an ally. Sean Hayes uses it too and let’s not forget the show was written and directed by gay people. I have no issue with straight actors playing a gay role as it’s acting but I also expect LGBTQ people to get roles too.