Why am i not attracted to asian guys when im asian?

I've never really been that much into Asian guys. Sure, I dated few before, but it always made me feel like I'm dating my cousin or something. I also always found them to be very effeminate in comparison to white guys. Most of my friends actually feel the same way as I do. My one friend (she's not Asian) thinks it's weird why Asian girls are often not really into Asian guys. So I don't really know how to explain it.