Quite right, and quite wrong.
"Just because we don't believe in gay 'marraige' doesn't mean we are homophobes."
No, you're right, it doesn't mean you're homophobes; it just means you're stupid fuckwits who know nothing about society, history, religions, or language. (Or, come to think of it, spelling.)
The pre-Roman Celts in Britain got married. Had nothing to do with Jesus; probably regulated by Teutates, Belenos, or Cernunnos. The Vikings got married too -- again, nothing to do with Jesus; Thor and Odin and so on. So, no one religion has a monopoly on specifying what "marriage" means.
Marriage has always been a *social* concept, throughout human history. And society is changing. (OK, always has, but it sure feels like perhaps it's faster noadays.) One such change is that most cultures (at least Western ones) seem to have collectively decided that it's pretty darn barbaric, nowadays, to deny gays the rights or privileges we allow heteros.
"Nobody is depriving homosexuals the right to fall in love with a person of the opposite sex, get married and have children. Just like normal people."
Ha ha, very funny. Proposition 8 was apparently all about depriving homosexuals the right to fall in love with a person of the sex they're naturally attracted to, get married, and perhaps adopt children. Just the opposite of what the law allowed "normal people".