It's a tiny percentage of the population. I don't see why it matters. Unlike the common fantasy much like in certain primates female pair bonding is a social strategy for low status/value women. Go to any lesbian bar and confirm the truth of that for yourself. That or it usually involves abnormal hormonal situations for women and/or inability to form bonds with men because of abuse.

Not a problem at all as far as I can see outside of them raising children. Every time I see some poor young boy raised by lesbians I see a trans, a gay or a suicide waiting to happen. Lesbians raising especially boys is abusive and should be outlawed but outside of that let them do whatever they want.