Don't be silly. Courts will decide based on the meaning in context. A reasonable person may very well conclude that that quote is a call to arms. I mean I don't know how a court would interpret this specific example, but polar bears won't factor in their deliberation.

The provisions against incitement of violence in the AWS TOS are standard. If Parler sues AWS, a court will actually decide on whether Parler violated the TOS. And I'm pretty sure that the AWS decision will hold. They didn't do this lightly.

Refusing service to trolls is a standard occurrence. The justice system would be clogged immediately if it were forced to decide every TOS violation before the accused party could be banned.