> This is not what I'm saying.
Sorry if I misunderstood. I'm not entirely sure what you didn't mean but here's my best-effort attempt.
I think my confusion came from the example you cited in your previous post, about the Honda Jet that was removed from a game. The game, as I understand from [1], essentially includes a model of the Honda Jet which is an accurate 3D model of the real-world Honda Jet. It also bears the same name. None of your "common examples" go this far, they do 'resemble' the product that is allegedly sued over, but they are not 1:1 3D (computer model) renditions of the real-world products and are not named the same.
> Stealing models byte for byte is obviously a copyright issue, as is stealing music
Glad we agree.
> The issue is that companies can trademark the "form" of their products and therefore demand licencing fees
This is where we disagree. As a (hypothetical) "creator", I would like to exert control over what I produce, in line with the law, except when I decide to licence it in some liberal fashion (GPL/MIT/CC whatever). How is replicating a 3D model of a plane, along with the name, not an infringement of the rights of the creator? If you want to respond, please keep in mind that we are talking about current copyright and trademark law, not some utopia in which new laws can be enacted willy-nilly.
> they couldn't just make their own mailbox because USPS would attempt to sue them
Really? There is not a single mailbox design that doesn't violate USPS' copyright?!
I will concede that copyright terms are long, but not indefinite (although for practical purposes they may appear indefinite).
Finally, I would like to discuss this claim:
> Model a military jet designed entirely with taxpayer money
On the surface it seems ridiculous. But why would the government (1) outsource the contract to the listed companies and then (2) agree to terms which state that the copyright/trademark belongs to the outsourcing companies? If you think about both (1) and (2) it's either a major flaw in how government contracts work (could be...) or the companies want the intellectual property and have "priced it in" into the dollar value of the contracts. Essentially, if the IP was government property, the military jet would cost more taxpayer dollars. What do you think? Honest question.
[1] https://torrentfreak.com/honda-takes-copyright-infringing-je...