It's always fascinating seeing people do every single type of PR response except for the one that would probably mitigate the most damage (i.e. delete the video, apologize profusely, burn everything). YouTube drama is always so entertaining because just have every single commentator with a camera and some kind of opinion jumping on the bandwagon to either share an opinion or go "Fine Bros suck for being greedy fucks."
YouTube's community is a fickle and volatile thing, and we've seen the alternative end to dying due to irrelevancy, and quite frankly it's hilarious. If more React copyright claims start crawling out of the woodwork, genuine or not, there will be ardent Redditors and other people waging this hate crusade for a couple of months, since nothing gets the Internet more angry than censorship.