Scott Alexander asks How Did New Atheism Fail So Badly? It’s in response to an obnoxiously fact-free Baffler rant. I think what Scott is alluding to here is the lack of fashionability of “New Atheism.”
But in the American context, I do think that New Atheism arose is a particular time and context, George W. Bush’s America, and has declined in salience in another one, where standard-bearer of the Republican party is a cultural Christian at best. The previous President, Barack Obama, was a liberal Christian who admitted that he believed in evolution more than angels.
Today a larger fraction of Millennials are irreligious than they are Evangelical Protestants. The proportion of Americans who said they had “No religion” in 2000 was 8%. Today it is 18%.
Addendum: I think some of Scott’s commenters are correct that the rise to prominence of Islam as something that good liberals need to defend in public, no matter their private contempt for the religion (which they share with me candidly of course), also makes New Atheism kind of less attractive.