Copyright infringement is just one of the ways platforms profit off illegal activity as a standard practice of business. Scams and malware are prevalent in paid advertising, fake news is propagated and shared on a mass scale impersonating legitimate sources and individuals, etc. all because platforms can hide behind blanket immunity for what's posted on their platforms.

I'm well into the opinion that if platforms can't operate within the law that they take some responsibility for what the environment they build and the problems they cause, they should be shut down. I think the world would be a better place without YouTube.

In the US, I think removing Section 230 is an absolute imperative. These platforms currently have no legal responsibility to police content, and many of our problems today stem from the fact that they aren't going to do what's necessary until they're legally responsible to do so.

If they're turning a profit on a user submission, and they aren't legally required to remove it, they have no incentive to do so. Platforms must be held responsible for their content, and if that changes the landscape of the Internet, so be it.