There is a Chinese idiom.
Xiang Zhuang performed the sword dance to disguise his attempt on Liu Bang's life—act with a hidden motive.
The sissy is just a superficial phenomenon, and what's behind it is terrible.
Traffic stars are easy to make money and easy to replace if they are not popular anymore.
So the entertainment companies over the years, like these kinds of stars, sissy is just one of them. These types of stars do not need to have any skills, just good-looking.
But recently these years such stars appear a lot of tax evasion, drug abuse, glorification of the history of Japanese invasion, etc.. What's worse, there are many fans who raise money for them.
The input of dysfunctional values is scary, so the Regulators started to regulate these companies.