Oh no, it's not cuz he's British. Heck, my brother was born in England so he has absolutely nothing against British people. However, he seems to have heard somewhere that he was gay. It doesn't matter to me... Picard's not even my favorite character, but it does get annoying having to deal with my brother pressing his views on me at any opportunity he gets. I've told him everything y'all have told me, and his counter was "What man would support gay rights and have gay friends and NOT be gay himself?" Well, my brother's a homophobe so that's why it matters to him. And he said he wants to "be right for once" so he can rub it in my face that I'm wrong.
I haven't told my brother about the interview where Stewart said he got into acting because it helped him meet girls yet. Next time he brings it up I'll tell him that (he might be shutting up now since mom told him to drop it).
So, the whole issue doesn't matter much to me, but it matters to my brother and he's really driving me nuts with it.