Chapelle is singularly unique, because who the fuck walks away from a million dollar tv show, because of integrity, in an industry nearly bereft of it, & survives to make a comeback? It's unheard of.
I agree Chappelle is unique. But I think we're underestimating how unique Carlin was as well, despite the content of a lot of his work, his aim was never just shock and button pressing. I think he could brave the contemporary landscape. He received loads of backlash in his day, it's just harder to see that now that he's a beloved, deceased figure.