They have flipped the meaning upside down until it applies to people who are NOT sodomites. Look at any and all TV shows with a sodomite character, and notice how "normal" and "well adjusted" he or she is.
Any and all people, especially if they're older, who are portrayed as "straight" are Archy Bunker jackasses and narrow-minded goofuses . . . in other words, "Deviating from the expected or normal; strange"
Exactly.