Nobody depends on 8chan. 8chan is not comparable to "air".
This point is so incredibly banal that I'm surprised to find myself making it.
Why is that a remotely controversial statement? Nobody is suggesting that chan-tards should be rounded up for unamerican activities, and I'd be the first to speak against that, but CF don't need to tarnish their brand with 8chans bullshit.
They're free to withhold their support and so express an opinion.
Because Cloudflare used to say that they would never take anyone down, and now they have. I think it's valid to wonder if they'll be more willing to take down other content, and perhaps become a target by groups looking to restrict the spread of certain information now that they've shown that this is something they're willing to do. This also brings up the point of why Cloudflare thought this specific website was worth taking down, and not the other horrible things that they do support.
Why? Think about what you're saying. Imagine equivalents:
1. We wouldn't allow cell phones that let terrorists communicate
2. We wouldn't allow roads that allow anyone to carry whatever contra-ban they want down them.
3. We wouldn't allow trains that allow just anyone to carry books on whatever topic they want.
4. We can't allow for air that allows two willing participants to communicate using sound waves.
The hubris to imagine that we dare have a say in whether a group of adults date to communicate with each other.