Agreed, trading or investing should be done by own research and conviction. But the larger points, made in the video, are completely valid. I think the likelihood of the entire crypto space being a giant ponzi scheme lies definitely above 10-20% and I am being very conservative here. The reasons for such estimate are manifold, among others the issues with tether. Or that it's not backed by anything. Claiming that fiat is neither backed is not true, not saying you made such claim but I imagine you might.
The guy in the video has lost his mind. Getting rid of all your crypto because of Tether accounting problems is like saying you're getting rid of all your stocks after you heard about the Enron fraud. Stupidest logic I've heard in a long time.
The problem with that guy and a zillion others is that they are basing their trading decisions on random tweets from either a celebrity or from someone they don't even know. And you see this stuff almost every day. One day it's a tweet from Elon Musk and everybody loves Bitcoin. The next day is a negative tweet about Bitcoin from the same guy but a positive mention of Dogecoin so now everybody jumps in Dogecoin. And so people get themselves on this tweeting roller coaster of one-sentence blurbs from celebrity figures not realizing that the very people they are following are not even crypto experts. Last time I checked, Tesla sold a whopping 17 cars in bitcoin so what exactly makes Elon Musk or other celebrities like him a crypto authority in any way? Well, the answer is nothing.
So in summary, if the basis of your trading is staring at a chart and hitting the buy or sell button after reading one-sentence tweets, it's going to be a painful journey.