It’s a matter of the Constitution, see. The Constitution guarantees equal protection under the law to all people. That means that the law has to give everyone equal status, without discrimination. That includes same-sex couples. If heteros get to marry, then homosexual couples need to be given that same right.

No state has the right, through its legislature or through an electoral proposition, to overrule the Constitution’s equal protection clause. Prop 8 tries to do just that – and that’s what makes it an insult not just to same-sex couples, but to all Americans who believe in the freedoms and rights that the Constitution guarantees.