Calling them losers certainly isn't going to stop them. Figuring out why they're doing it and addressing those factors might. Let me posit a question - who has more to offer a rural Chinese woman, farmer Wang who will consign her to subsistence living and borderline squalor, or upper middle class software engineer Dave from Palo Alto? The answer is obvious. And no, successful businessman Chen from Shanghai isn't going to take an unmarried woman in her 30s. Dave's got no such inhibition. He's also likelier to let her do as she pleases, with fewer gender-based expectations. Essentially, her quality of life and freedom are secured with him, if not her happiness. Now what can Dave offer Susan, a marketing consultant whose income matches his own? Personality and looks matter a lot more to her, and it's a woman's market in most western countries. To add onto this, Dave's a 7 and he knows he's worthy of a girl who's at least a 6. Susan's a 5 but she's inundated with 8s. The rural Chinese woman? 9 and she can't find a fucking 4. I hope this clears up the cause, somewhat exaggerated as it may be. As for a solution, beats me.