That's arguing semantics - whether you call it rights or powers makes little difference. When people elect a government, that government passes a law, and some

That's arguing semantics - whether you call it rights or powers makes little difference. When people elect a government, that government passes a law, and some above-government institution overrules that law, you don't think that affects the rights of people? You could argue that the people agreed to that when their state joined some union, but if that union exceeds the authorization that was initially agreed to, it violates states rights, and by proxy people's rights.