I don't believe abuses are okay if you have more market power, and I don't believe they will stop with Kiwifarms, which was not the first victim of this phenomenon.
I was active on an anarchist forum that died because Cloudflare pulled the plug on 8chan, which hosted said forum. You may want a world where a few companies decide what you can and can't say; I don't think I can afford to live in one.