How about people just stop being jerks and only provide information on what you absolutely have solid knowledge? Anyone who is an attorney knows that an answer of “not exactly” is perfectly reasonable and true, because the most famous answer in the context of legal items is "it depends."
Even NY has said you’re not exactly paying taxes on taxes. If you want to debate the legality of it, then let’s discuss how NY charges a county use tax in some counties on your registration, and a use tax should only be implemented for the “privilege of using something (property) in a state when the state’s sales tax has not been paid,” to say it as simply as I can.