No one is arguing it's not – but most people agree its warranted given Amazon's previous anti-competitive behavior, i.e. de-listing competing Google + Apple streaming boxes + Nest products + never offering integration of Prime Video on the Apple/Android TV in a clear move to promote FireTV + Prime membership

I know you're being facetious, but in many states legally yes, provided you're caught in the act.

I am not being facetious. IMO, it is not warranted for anybody to break laws in retaliation to another person breaking a law.

I agree with you.

however, the people murdering the thief would claim that they are not breaking any laws.