You spend twenty years designing the perfect steel production method, spending millions of dollars, and start selling it as Pessimizer Steel. It's obviously superior. You start making some of your money back. I spend an hour watching you through the window and start selling it as Super Steel and claiming that it's just as good because I made it the same way. I sell it at half price because I'm not paying off any business loans. You go bankrupt.
That's the system you want? Who is going to invest in steel research in that system?
That's not an argument about forging trademarks - it's an argument for respecting patents (if the Pessimizer manufacturers got one) or trade secrets (if they didn't).
You can make an argument for trademark law on the basis of sunk costs to develop an intangible brand with intrinsic value, as opposed to as a consumer protection mechanism, but this isn't that.
You spend twenty years designing the perfect steel production method, spending millions of dollars, and start selling it as Pessimizer Steel. It's obviously superior. You start making some of your money back. I spend an hour watching you through the window and start selling it as Super Steel and claiming that it's just as good because I made it the same way. I sell it at half price because I'm not paying off any business loans. You go bankrupt.
That's the system you want? Who is going to invest in steel research in that system?