I found it interesting to read that denunciation in the context of some observations from comparative religion scholar Stephen Prothero.
Marriage equality is coming. Even the right knows this; except when performing ritual obeisance at Liberty University, Mitt Romney has downplayed gay marriage as a campaign issue. But do religious leaders understand how they are giving that which they claim to love a bad name?
It's not just the evangelicals. Do Catholic bishops and Mormon elders understand how choosing literalism over the Golden Rule makes them seem simply bigoted cranks? Religious understanding will evolve; it has before. But how many generations will equate the instinct humans have that there is something more -- an instinct we have named "God" and in some traditions "Jesus" -- with ignorance and intolerance?