From the link:
Then, after the their 2009 “gay marriage” referendum defeat in Maine, the homosexual movement decided to craft an entirely new approach toward elections.
They brought together groups of political strategists, psychologists, pollsters, organizing experts, and various “think tank” types. They meticulously studied the data and their election experiences and designed a new set of strategies and tactics to win against their “right wing” adversaries.
They created a sophisticated propaganda campaign. They shipped thousands of activists into key voting areas to canvass door to door. In order to soften the average people toward homosexuality and create an animus against traditional religious values, they resurrected many of the “big lie” techniques used by the 20th-century totalitarian movements. For example, people were told over and over that not allowing “gay marriage” was bad for the economy and that only backward, ignorant, and superstitious people were still against it.
They decided to copy the religious right. However, I'm thinking that people just got sick of the unrelenting hate from the right, and decided that accepting homosexual marriage was a good way to poke the bigots in the eye.
Serpent's people brought this on themselves.