So far as I can tell, the left wing YouTubers are blanketing “New Atheism” based on what Sam Harris and a few Atheist YouTuber have said (making said left wing YouTubers no different than the right wing and “classical liberal” YouTubers who conflate the entire left with a handful of angry University students).
Sam Harris’ Quotes in Context and Smears Addressed
Huxley C

Sorry, man. It’s more than a handful of college students acting out. Pretty much the entire left.