It's not completely impossible for China, though. It all depends on how their politics swing. If the CCP gets more people who are a certain kind of communist/socialist they might see it as making people more equal, but more likely they'll reject it on the basis of being "un-Chinese".
Correct me if I'm wrong, but can't you be executed for homosexuality in China?
No. Legalized in 1997, removed from mental disorder list in 2001, no history of executions about it specifically but there isn't much data. Current government policy towards homosexuals and same-sex marriage is 不支持, 不反对, 不提倡, which translates to: no approval, no disapproval, and no promotion. Like many things, China appears to be trying to ignore it until people approve of it, at which point they will grant it and portray themselves as amazing leaders for doing so.
That's pretty much accurate. If there's any repression of homosexuality in China, it's cultural rather than legal. It's no big deal in the major coastal cities (there are blatant gay bars in Beijing, Shanghai, Hangzhou, Tianjin, etc.) but it would be a much tougher thing for an LGBT Chinese in a rural village. You gotta figure...it's a 5000-year old culture, it's not like homosexuality is a modern invention. So it's recognized even in classical literature, and not all that negatively. But at the same time, you have this weird thing where the court eunuchs became villainized and homosexuality and transvestitism are associated with black magic. You still see that today in Chinese (and Thai and Korean and Japanese) film, where bad guys often have high-pitched giggly voices (or in the case of Tony Jaa's
Tom yum goong was a transvestite
played by an actual transvestite.)
There's actual some sociological work predicting that homosexuality may increase in China over the near-future simply because of the male-female ratio imbalance. The thought is that too many guys who simply can't find a date might cause some of them to broaden their selection pool.