Good article, which has attracted some criticism.

Vox by Ezra Klein "The political tribalism of Andrew Sullivan " I like most of Klein's insights.
[vox.com]

and I think a little less satisfyingly by Mike Pesca in Slate

"Andrew Sullivan’s “New Religions” Essay Is Twaddle
[slate.com]

I agree with Sullivan't basic premise:

"Everyone has a religion. It is, in fact, impossible not to have a religion if you are a human being. It’s in our genes and has expressed itself in every culture, in every age, including our own secularized husk of a society.?"

My conclusions from this are very different than his.