Homophobes (no link needed)
The marriage equality vote must piss these people off. As gays and lesbians get more freedoms, the homophobes will become more and more isolated. The one thing that I hope will come from this is the death of the conservative movement. Conservatives, especially social conservatives rely on there being a large chunk of ignorant and bigoted people to pander to and as my generation (Generation Y) becomes overwhelmingly tolerant and accepting, this will make it harder for conservatives to recruit more. Conservatives on the other hand will have an easier time recruiting corporate conservatives, aka the pseudo-libertarians which liberals need to start counter-recruiting.