LOL. Dog whistles abound in this one with the 'progressives usually go after celebrities for even affiliations they find objectionable." as if that's just a 'progressive' thing in this political climate.
That said, it just took a google search to find plenty of pro-gay marriage Colbert jokes AND interviews, which I would put up, but since it's google its pretty easy for you to find, which obviously you didn't want to find, so you can throw that progressive jab.
Btw, lapsed Catholic after a good twenty years of faith here, and even in my time I found pro-gay priests or ones that tried to toe the line against the Vatican as much as they could.
So I looked up what a dog whistle was, just to be sure I was not misunderstanding, and - yeah - I am not dog whistling. I was just stating a matter of fact. Anyway, as for Colbert, I suppose I put more weight on his authentically personal interviews, like the one he did for Salt and Light, where he opened up about the tragedies in his family and how Tolkien's letters helped him through it. It was touching, but it would probably sound incredibly strange to non-religious ears. As I said, though, one would think that Ellen or any progressive would go after Colbert for even his affiliation with the Church, which is probably the ultimate mother lode of all evil, she's got a lot of everything.