As long as the sexuality isn't forced on the children I have no problems with gays raising kids. There is no homo or hetero way to raise kids, at least there shouldn't be. Kids should eb raised to respect their elders, obey the laws, and the such but still be free to make their own choices and become a fully developed and productive member of society, whether be gay or straight.
One's sexual drive is biological so it has no bearing on the parents own orientation.