In particular, let me reiterate in summary:
1) Opposing gay marriage is not the same thing as being homophobic.
2) That the position is wrong (and I do think it's poorly reasoned as well as morally wrong to oppose marriage rights) doesn't make the people bad.
3) If good people believe wrong things, the appropriate response is to tell them why you think they are wrong.
5) Without assuming that this one wrong view makes them on universally bad or wrong.