When it comes to threats to freedom of expression, I'm much more concerned about the religious right's abuse of government authority to censor education, ban books, and suppress the vote, than I am about private institutions taking steps to protect human life.
Cloudflare has ever right to open Pandora's Box, but I want nothing to do with it. Much like Namecheap's fumble earlier this year, the way they handled this situation showed their true colors, and made it evident that I don't want to ever do business with them.
Failing all that, KiwiFarms doesn't need a business to stay afloat. The endgame for all of these so-called 'abusive platforms' is retreating to I2P/Tor, or another internet-adjacent network. To stop KiwiFarms from existing, you need to literally silence the people using it, not just shut down their clearnet website. Websites don't harass people, people do.