No one thought twice about AJ McCarron's girlfriend being in the spotlight constantly or the fact that he made a show of her a lot because he was proud of her (most were too busy drooling or thinking 'lucky SOB' to themselves). No one thinks of anything about everyday straight people talking about their wives/husbands or having photographs of them in their offices. There's never a second thought given to holding hands or a quick peck on the cheek. The accusation that gays are somehow forcing their icky gayness on to others is just silly. If anything they're starting to act like their everyday straight counterparts.
No one should have to hide from their friends and co-workers who they are nor should they have to keep secret the person in their life who brings them joy, no matter who it is. They shouldn't have to be fearful of going out with their partner in public.
I think a lot of folks take for granted all of these things. We only notice when straight couples go wayyyy too far in their PDA -- we remember what is odd or unique not the background noise. When gay couples become less fearful and more open in acting like any other couple they'll fade into the background just like your everyday straight couple. They'll be background noise too, completely forgettable as just another thing you saw during your day but didn't mark because there was nothing special about it.
Even a lot of people getting their panties in a wad now will eventually get used to it, although a small number will remain bigots to the end just like with race. Like it or not, Michael Sam being public about it is a part of that change and the march forward in civil rights, human rights, isn't going to stop because some folks think it's icky.