I can't say I blame 'em. Role-players are surrounded by numerous misconceptions often cemented by role-players themselves. As a result, a lot of players just don't bother understanding exactly what role-play actually is. It's a shame and the vocal disapproval of role-play isn't needed but that's just how it is.
It's best to not let these things get to you and shrug 'em off.
It's best to not let these things get to you and shrug 'em off.