As you said they are Crypto youtube channels. Not Bitcoin, so I pass. I don't like them and don't care. They deserve it after getting rich for promoting shitcoins and trapping investors and making them lose. Most of them appeared right on the altcoin bubble and on every video were shilling shitcoins. I blocked most of them and they made me hate shitcoins even more. Right now I feel bad for the people that listened to them and invested in these shitcoins but I seriously hope every stupid shitcoin that paid youtubers and also fake accounts to shill them to burn in hell.
Also it is obvious that the youtube is helping these idiots channels with their algorithm all this time. In a decentralized youtube noone would watch them.