I personally don't understand the anti-censorship argument wrt racism.

YouTube has always been free to remove any content they'd like for any reason. When they more specifically define the content that they will be removing, it somehow now becomes controversial? This surrounds the argument with uncomfortable undertones. The idea that your message deserves equal treatment despite the content seems to be a value promoted by racists.

Also, Google/YouTube, Facebook/Instagram, Twitter, etc, don't owe anyone a platform. If this were not true, I don't quite understand how corporations could reasonably comply.