There was a scandal a few months back because Cru$h appeared to ignore black fans and only touched his white fans hands. Most idols are just like the other people in their culture. Most of the men voted for their president, are misogynists, hate LGBT and minorities, but have enough training to make nice. Their money is made by playing a role. No one is that nice to a stranger. Fans lose common sense when they get involved with kpop.
Fandoms attract people with mental health issues. Look at Ha4ry Pot7er, gaming, anime, and weeaboos. The most maladaptive people are the biggest fans and spend a lot of money to feel loved. Globally, societies are messed up. They fail to care for the masses and it's showing with low birth rates, lots of suicides, emigration, and mental illness. Kpop is like a drug or a cult. Those things also attract the lonely and depressed.