Distributing a model created using your brain is illegal, if the model violates copyright law. (Just like copying stuff without using neural networks in meat-space was already illegal.) If you create a program that reproduces copyrighted work, and distribute the program, then the distribution is illegal. That was the same answer I gave at the top. The brain vs silicon silliness is a strawman and has been all along because it doesn’t matter how your program was created, building and running it is not the illegal part under copyright law, distributing it is (and/or using material that you haven’t obtained legally).

> if the tool has the capability to violate laws, then the existence and distribution of the tool itself violates said law.

That’s right if you remove the word “existence”. Distribution of a NN model that violates copyright by reproducing copyrighted works is illegal. That part has been my point in this thread, it seems like you understand now and we agree.

It’s “existence” is not illegal under US Copyright Law unless you didn’t have the legal right to use the training material, and in that case it’s illegal to use the material whether you used a computer or your brain, it doesn’t matter how you created the neural network (or even whether you created a neural network), the violation there isn’t the act of creating the network, it’s the act of stealing and using material you don’t have permission to use.

This whole discussion would be a lot less frustrating for you if instead of making assumptions and logic arguments about brains and computers, you took some time to read the copyright legal code. https://www.copyright.gov/