I won't use CloudFlare if they are internet bodyguards for Nazis. I've registered my displeasure. I did not participate in the DDoS attack.
It's your choice to shun the providers that support free speech (yes, that means letting people you do not like speak, there was a time once that even ACLU understood that) - but it's not what happened here.
Real people were swatted by real posts on KiwiFarms. No tears will be spilt if these internet tough guys/gals can't afford their hosting bill and thus close down shop. Another group of keyboard heroes face minor consequences for their disgusting actions.
Your view of free speech isn't workable. You tell others to preemptively hamper their own liberty and free speech so these habitual line steppers can preach intolerance.
What you want is the freedom to speak without consequence. That will never exist, nor should it.