It's also entirely possible to be pro-gay marriage in 2004 and anti in the 1980s. Certainly a ton of people fit that description. That said, I've probably read most of his books and I don't remember him talking about gay rights one way or the other though who knows what stereotypes he wrote about that simply didn't register 25+ years ago?
Being anti-gay-marriage in the 1980s would make you wrong, but it wouldn't make you a Republican. Don't-ask-don't-tell and DOMA were both implemented by Bill Clinton, after all.
On the other hand, inventing the term "Republican Party Reptile" probably makes you a Republican. Because, like, you know.
