These people (and I hesitate to call them people, redditors are notoriously dense) really have absolutely no idea what it is they're asking for, do they?
Cloudflare's business model is selling websites protection from DDOS attacks. If they revoke that for the farms when there is no illegal activity going on here, then it could happen to anyone else at any time. What good is a shield if it could be taken away at any moment by powers beyond your control? It could still happen anyway, but that's a surefire way to kill your business when your clients can no longer trust that you'll be providing the services they paid for. Furthermore, why are you calling for the removal of Cloudflare's protection from the farms unless you intend on launching DDOS attacks of your own, admitting that you wish to commit an illegal act?
And "legislate [the farms] out of existence?" What the fuck are you talking about, moron? Between the First Amendment and Section 230, there's literally nothing here that's illegal, and no way to target the farms specifically through law (I mean, IANAL but I doubt a Ban Kiwi Farms Act of 2022 would be constitutional). The only way you'd change that is by rewriting Section 230, and if you do that, then you basically torpedo the whole internet as any website could run afoul of the law by some random user posting slurs.
Fucking hell, we're plumbing depths of stupidity not thought possible.