From a piece in the Wall Street Journal by attorney David Boies about why he and Ted Olson are taking on Proposition 8 in federal court:
"The ban on same-sex marriages written into the California Constitution by a 52% vote in favor of Proposition 8 is the residue of centuries of figurative and literal gay-bashing. California allows same-sex domestic partnerships that, as interpreted by the California Supreme Court, provide virtually all of the economic rights of marriage. So the ban on permitting gay and lesbian couples to actually marry is simply an attempt by the state to stigmatize a segment of its population that commits no offense other than falling in love with a disapproved partner, and asks no more of the state than to be treated equally with all other citizens. In 2003 the United States Supreme Court in Lawrence v. Texas held that states could not constitutionally outlaw consensual homosexual activity. As Justice Anthony Kennedy elegantly wrote rejecting the notion that a history of discrimination might trump constitutional rights, 'Times can blind us to certain truths and later generations can see that laws once thought necessary and proper in fact serve only to oppress. As the Constitution endures, persons in every generation can invoke its principles in their own search for greater freedom.'
"There are those who sincerely believe that homosexuality is inconsistent with their religion — and the First Amendment guarantees their freedom of belief. However, the same First Amendment, as well as the Due Process and Equal Protection clauses, preclude the enshrinement of their religious-based disapproval in state law.
"Gays and lesbians are our brothers and sisters, our teachers and doctors, our friends and neighbors, our parents and children. It is time, indeed past time, that we accord them the basic human right to marry the person they love."