'But will no one think of the nonwesterners??'

Might as well rant on my own turf rather than at ffrants.

'On characters being gay or straight' may be fine if you're talking about characters in western shows who themselves are likely to think in the categories of gay, straight or bi. Otherwise, I have my doubts.
( If Wen Zhong sends a cut sleeve to Li Fan, doesn't that make Wen Zhong gay? )