I don't know why you'd say that. I never felt the same way. Yes, I agree that there are Chinese everywhere, and a lot of them are singles. But I don't see many 鲜花. Most of the immigrants came here are quite old alreay, so many of them are married already and came with wife/husband and their children. The singles are of the same age, so you can imagine the situation. As single women, they are not 鲜花 anymore. Many of them were not 鲜花 at the first place. And many of them are divorced, some even have children.
There are two reasons why a woman who's never married hasn't settled at such age: she is either too picky and missed her best time which is 23 or 24, or she is not attractive.
There are many young students there. Among them there are some 鲜花, but not many.