Not talking about the sex industry, Asians from mainland China will treat you very well. Asians from HK will treat you worse than they will treat their own. That is why I always let HK people know that I, as a white person, am superior to them. I make sure they never overstep boundaries with me. Having said that, HK people aren't nearly as 'group-minded' as Koreans. Koreans are complete assholes. Don't ever waste your time making friends with Koreans.
I get tired of having to remind people of how superior whites are compared to the other races. I can't stand when non-whites immigrate to Canada and then try to display an attitude of aboveness towards whites. They come to a white-dominated country and then try and put white people and white culture down. Ridiculous. Go back to Korea or elsewhere if your people are so wonderful. But no, they come here because we are the best. And they know it too.
Now in terms of the sex-industry, the only thing Asians will do to you is charge you a little bit higher price sometimes and some girls might refuse to see you if you are black or Indian. But, many girls will still see you, so don't worry.
In general, if you are clean, polite and display a certain level of classiness, sex-workers will treat you well. They just want easy appts from gentle and generous men. If you don't cause problems for them, they won't have a problem with you.
For SPs, they don't like black customers because they are worried the blacks will cause them problems - robbery is the biggest concern. I feel bad for black customers who are just normal men, but the fault lies with black culture, not with the Asian sex-workers that are afraid to see them. Regarding Indians, they don't like the haggling mindset of Indian customers and they also don't like your general body-odour. Don't cook with heavy spices before you go and don't haggle them down as if you were in a New Dehli fleamarket. Basically, act like a white man and you will be fine. Most sex-workers prefer white customers. It is because we behave the most respectfully and pay the most. We are generally neat and clean and well-mannered. That is what the sex-workers want.
If you wanted to make it as an NBA basketball star, you would model your game after Lebron James or Michael Jordan's playing style. Likewise, if you want the best service, think white, act white and you will be treated as you want to be treated. You don't have to be born white.