It's not really Youtube's fault though. The copyright system in the USA is absolute garbage and stifles creativity and innovation.
Their automation obsession has resulted in a firehose of erroneous takedowns that 100% aren't required by law, and they deserve all the ridicule and damage to their business that comes with that.
The fight doesn’t have to take place in the realm of law. At best copyright holders would have sued youtube into oblivion if they didn’t do proactive takedowns. At worst, well considering that Comcast owns both tons of copyrighted property (through Universal Studios) and major telecommunication infrastructure, I can’t imagine how dirty they can play if they had to.