I guess I'll wade into this one after all. I'm far from being politically correct myself, but I think you guys are screwing yourselves if you write off an entire race of SPs just because of a few bad experiences. God knows I've had my share of bad ones in this hobby, but it's because of the attitude of the individual girl I've seen, not whether she's asian, black, or white for that matter.
If the only asian girls you've seen have given you these bad experiences, there should be a couple of different factors to consider. If may be that you've simply had bad luck and seen the wrong girls. However, it's my experience that if you go into a session thinking it's probably going to be lame, then it usually happens that it's lame. It's due as much to the negativity that you're giving off as anything.
That said, there are a lot of differences in language and culture that need to be overcome sometimes. There can be mistrust from both sides and if you're not used to dealing with that sort of thing then it might be best to stick with the girls that you feel most comfortable with.
This is free advice, so take it for what you think it's worth.