But this quagmire of inaction, judgement and group-think is older than technology though. Just because social media wasn't available before didn't mean there weren't "mechanisms" of society to channel those impulses into. So why do you think people are thinking more than before and why this quagmire is a modern invention? Like how are we measuring what people are thinking and what people are not thinking?

I understand its your subjective opinion but I would like to know what basis your claim stands upon. Just like more easy information so people overthink?