Im sure you would be much happier if he was married to rosanne barr in a movie. Its not just a hot wife, its putting a good actress in a film to draw people into the theater.
OP I actually agree with you. It's just so far fetched. These are some of the sexiest women on the globe and he can't even tuck his shirt into his pants because it would accentuate his fat belly. He's not ugly, just...average. Not Aniston/Decker/Hayek league
I would say it was fine - if any of the characters he played were half-decent people. Or, you know, if there was a balance of beautiful women and beautiful men in the films he's in. But there never is. Adam Sandler refuses to stand next to another male lead who's equally attractive to the women and who is potentially competition for him. But he will be the only average looking lead man and date young and attractive bikini ready women (though he of course won't show any skin or even wear clothes that fit him).
He actually cast himself next to a far more conventionally attractive man in his latest movie "murder mystery". And it's even mentioned multiple times in the movie how he is jealous of his looks.