This is my opinion, through and through. Regardless of your views on regulating companies (breaking up cloudflare because it's too important vs not doing that), I believe we can mostly agree that companies should not be making moral decisions on what content we should access.
Moral decisions are a two-edged sword: we may all agree kiwifarms is bad and should be blocked because we agree trans people have a right to live without harassment; and if Cloudflare agrees with us, they'll block kiwifarms and we'll rejoice. But what if Cloudflare had a different value set from ours? What if they decided to block all pro-abortion-rights websites? They would, after all, be within their right.
It's my opinion that governments should ultimately be the deciders of what goes. Kiwifarms is allegedly committing several crimes. What should be investigated is: why did law enforcement not get involved sooner? After all, Cloudflare can be ordered to stop serving a person or legal entity by a court of law. So why hasn't that happened?