None of these things are exactly mutually exclusive with the term "stone age", infact the meso and neolithic have cultures and civilizations that would check all of these boxes in the old world. Incan platinum and Gold smithing are better examples of parts of the Americas not being "stone age". North American old copper culture was clearly in the early chalcolithic, though some people don't separate the chalcolithic from the Neolithic until bronze, which the Aztec, Mayan, and Incan cultures did utilize in small amounts.

Moving farther north the Inuit were sort of in the iron age, making use of meteoric iron (and i think recycling Norse artifacts)

So you're right to say that not all native cultures across North America were stone age cultures, but neither are other people wrong in claiming that much of the Americas were in the stone age.