Not exactly (at least I hope not). I think they're defending the rights of cesspools to still have freedom of speech.
(Except it's not government restrictions, so it's not exactly First-Amendment-style free speech.)
(And, in defending KF's right to be on the internet, they're defending other businesses being required to carry them, which is... free speech for KF but not for people like Cloudflare.)
Blocking Kiwifarms[0] (approaching 2k comments)
Kiwifarms Response to Cloudflare[1] (approaching 500 comments)
Kiwifarms Is Down Across All Domains[2]
Kiwi Farms: Anti-trans stalkers chasing Keffals around the world[3]
Cloudflare Pressured to drop Kiwifarms after latest doxxing effort[4]
BSNES author Byuu bullied to suicide by Kiwifarms[5]
[0] https://news.ycombinator.com/item?id=32706673
[1] https://news.ycombinator.com/item?id=32722950
[2] https://news.ycombinator.com/item?id=32722950
[3] https://news.ycombinator.com/item?id=32706292
[4] https://news.ycombinator.com/item?id=32557826
[5] https://news.ycombinator.com/item?id=27657610