Why should a vendor be able to stop you from using a thing you bought because it looks like one of theirs? No support, sure. Disavow the item, sure. Post warnings on the device as an inbuilt part of the system, sure. But destroy your item? No.
If someone is fraudulently selling cars badged as Fords, Ford itself should not be able to repossess those vehicles. And if Ford thinks that you have stolen their car, they themselves should still not be the ones who repossess it - that's what the police are for. Vigilantism is a bad thing and has all kinds of unexpected failure modes.