You can disagree with Anthropic leadership, but all the points you mentioned can reconcile very well with them thinking in good faith "advanced AI is too dangerous to be left in all hands" Except the "train on everyone else IP" which can be said of all AI companies.
Problem with Anthropic is that they benefited massively from open source and now are completely against it. It’s hypocrisy at its worst. Why do they get to benefit, but not everyone else?