Mr Smurf 5 point plan:
1. Admit that there is such a thing as White girl / Chinese bloke pairing.
2. Understand that it's not that white girls won't go out with any Chinese bloke. It's that they won't go out with you.
3. And not because you're Chinese. Probably because you have some unattractive features. Like blaming all white women for your situation.
4. Manage your expectations. You have a thing for these ethereal, nymphet type beauties. That's not a niche. Every man in the whole world, and quite a few women are into them, too. Hence, they are in demand, hence they have their pick and you are probably low down on their list. If your only criterion is that your girlfriend "must be white" that really shouldn't be too tough. If she has to look like Anna Carlson, you're going to have problems.
5.Stop being such a dick.