They are feeling personally attacked, by the content of the discussion, so they're acting out. That's completely understandable at a human level.

The reason we have these discourses is so we can hammer out our ideals, and see them implemented in different ways.

So let's use other examples, so that people aren't as emotionally invested in the particular discourse.

Telecommunication providers, at least in the United States, are given safe harbor from the content they deliver, so long as they don't editorialize (select what's allowed). If something's illegal that's up to the legal system to enforce. And if there's a court order websites can be taken off, routes can be blackhold, links can be seized.

The United States government, and their politicians, have a long history of not cutting off the communication even of their enemies. We still maintained phone connections to the USSR during the entire Cold war. The internet was not shut off in Iraq during the Iraqi wars. Iran despite sanctions is still online. US certainly could bully many of the world's interconnects to completely drop these countries. But they don't. For a variety of reasons, but I think the most fundamental is you have to demonstrate that you believe in your free communication principles if you want everyone to mimic them. A secondary but still important reason, is to see what your enemies are saying. That's actionable intelligence!