Copyright should just be a contract between seller and buyer. You promise not to redistribute this. If you didn't buy something, you have no contract with the seller and you can be free to download whatever you want or build whatever software or service you want.

The onus of finding who is the buyer breaking the contract and dragging them to court is on the seller.

We shouldn't have things like DMCA which allow you to censor anything tangentially related or being able to scare people off, but that's what you get when you have a corrupted government that does the bidding of Big Business.

Similarly, patents shouldn't be a thing.

You came up with something, you already have first mover advantage. If someone comes along and does the same thing better, too bad, they were better than you. If you have a manufacturing secret, protect it with contracts and sue for damage if they get broken.