I don't care who adopts. If they are capable and not likely to harm the Child then fine
That has nothing to do with the fact that two women can not got be on the birth certificate, because one of the names on the birth certificate needs to belong to a man, or be left blank.
That's not homophobic that's biology. One male one female to make a baby. How that happens will be down to personal preference. But you cannot defy the laws of biology.
if anything blame Biology. human Biology is very heterosexual when it comes to making babies.