now you're showing off your ignorance of the gpl, I'm sorry to say. that's not at all how supply chains of gpled software redistribution work. the license is granted by the copyright holders (who are given that power by law), not by whoever participates in the supply chain
and, as false analogies go, copyright doesn't apply to metal per se. but the issue is not the legal issue of copyright, is it? we were talking about ethics and moral issues pertaining freedom.