What you say MIGHT be true except for one FACT:Bump.There are more than enough heterosexual, married couples in America and Europe who are willing and financially able to adopt these children.
I know far too many couples who want to adopt and they don’t care about the child’s sex, race or anything else.
Obviously these children won’t all be raised in households that earn $500K+ a year, but neither are 99% of the children who are born here and they generally turn out just fine.