Stoicism has found renewed interest in technology circles especially.
I suspect this kind of stoicism — for Marcus and Wallace and some modern popularizers — is a response to perceiving the breakdown of a functioning world. Their prescription for dealing with such troubles is to develop profound internal strength, and in doing so the stoic attitude can dodge some societal-level failures by compartmentalizing toward a robust individualism.
I think Sarris hits on something that has bothered me about stoicism: its focus on the individual. It leads too much to detachment from responsibility to our communities and the broader world, when the harder, less glorious task of working together and finding compromise and actively working for a better future is what will get us through. We can’t wait for a hero, we all need to be heroines.