I understand you completely. People just want to impose their own truth and don't understand what's new. Like your example of talking about blockchain, no one bothers to believe or try to understand it. They just judge it as a crime or something wrong, without understanding or reading about the subject. If they did, they might have a different opinion, but they just impose their truth and that's it, without even trying to understand the other side!
I really liked your post, big hug!