Not offensive, but also not amusing.
Cut it from your monologue.
mmm
Yeah, I’d replace it with the one about the tiger, the hippo and the woodpecker.
I think there’s a good joke in there, but you haven’t found it. But something about how there are a bunch of closet NFL watchers and connecting that with uncloseted gay people could work.
Personally not a big fan of “gays,” though. In my mind, that’s a word for gay comedians or comedians with a big gay following. Probably just a personal hangup (given no one else has commented on it), but it leaves a weird taste in my mouth.
I’d say it’s more offensive to refer to people as “gays” instead of something like, y’know, “gay people” or somesuch.
I also left this window open for quite some time to make BigT feel insecure and alone.
He may not know what a good joke is, but he sure knows how to bomb.
The wording is off. You shouldn’t repeat closet twice like that. And watchers is awkward. Try this:
“Now that gays are no longer in the closet there will be plenty of room in there for football fans.”
Upper half or lower half?
Outer half.
nicely done 
“in there” seems unnecessary.
Nope, too easy.
Come on! I was hoping SOMEONE would knock that lob out of the park!
As near as I can tell, evenly distributed.
So lots of foreplay but no penetration?
It’s arguably insensitive for reasons others have already mentioned, but I think the real problem is that since it’s not a very good joke it’s going to leave people wondering what about it was supposed to be funny. Since the recent football controversy has nothing to do with gay rights and the actual punchline is pretty weak, I can see how some readers might assume you were clumsily attempting to mock gay people. The joke doesn’t make a lot of sense as homophobic humor, but since it falls flat as any other form of humor it’s open to interpretation that way.
It was simply a Facebook comment on a NFL football thread where everyone would know what I was reoffering to.
And are some of your best friends gay? That could be the clincher.
Those types of shares tend to also share the comments, in my experience. It’s the one time on Facebook where I encounter people that neither I nor my Facebook friends know.
Everyone would know what the football part was referring to, but it’s not the football part that your acquaintance was objecting to. It was the part about gay people. Since the recent NFL controversy doesn’t involve gay rights and the intended punchline of your joke frankly just isn’t very funny, the reader might wonder why you were bringing up gay people at all unless your intent was to make fun of them.
It does involve closets and gays were in the closet for a long time. Funny or not it seems to have caught on, lots of references on different threads to closet NFL fans.