With the beard and the broad shoulders and paunch, if I was gay I'd be a bear. Some of my friends are bears. Sometimes they hit on me, which I take as a compliment, though I rarely take them up on it. Bears don't turn me on. From what I've seen of the bear community, this is pretty rare. Bears of a feather, so to speak.
The way I'm wired, and this is the same for all sexes, I'm not sexually attracted to large people. I go for petite people. Petite within reason - there's gotta be something to hold onto.
No value judgments here - there's nothing bad about big people. After all, I am one. They just don't trip that switch for me.