What's terrible is that many Christians who claim not to believe the bible literally still pick and choose the few parts of it that are anti-gay to justify their homophobic bigotry. So "disbelief in the literal truth of the Bible" != "not homophobic bigot". I'd wager that Brendan Eich doesn't believe the bible literally, yet he's clearly a homophobic bigot.
That wouldn't be picking and choosing parts to interpret literally. Even though some parts aren't interpreted literally(the creation story in genesis for example) the message about morality still holds(otherwise let's just discard the whole thing and burn it, it has no content).
And while I don't want to discuss this issue here(we've veered way off topic) let me just state that "does not think gay marriage should be legal" does not equate to "homophobic bigotry". You can have gay friends, have no problem with them as people, but still believe that marriage is something that has a very clear definition(sacred bond between husband and wife, for life, for the purpose of building family) which doesn't include same-sex relationships.