Is social media the worst thing to happen to humanity since WWII?
I'd argue that there is a case for yes.
People are just inherently lazy and unmotivated. You combine that with a society that is becoming more technologically advanced and as a result, less secular, and you have a recipe for mass idiocy (which leads to tyranny).
There's an earlier episode of 'Comedians in cars getting coffee' where Michael Richards appears. They talk the human condition and Jerry eloquently muses that humans have evolved to essentially kill time. Hilarious.
I don't think social media, the internet or television is bad per say - but there is no way to equally regulate the former and as a result you end up with what we have today.
We currently live in a affirmation bias society, where every opinion can be reinforced at the touch of your fingertip, regardless of its actual merits.
F'd up.