Low self-esteem/depression doesn’t appear in a vacuum. You need to find out who created it in you and is now still fostering it. Then, you need to undermine the influence of those people on your life dramatically.
There is a lot of talk from anti marriage institutions that say the legislation of gay marriage will tarnish the current "name" of contemporary marriage. Legalizing gay marriage will result in one thing, giving the gay community equity in today's society.