Leaving the US would do little beyond increasing the cost of litigation and making said founder look more like a fugitive. Tradesecret law and IP law generally is pretty universal. And you can still get sued where the alleged theft/taking/wrong took place. A default decision (ie you don't show up) by a US court will be enforced in Canada, Europe or most anywhere else.

As for free markets, while IP law does create monopolies, the theory is that many protected innovations would never be brought to market without some promise they won't be replicated.

For below: Independent creation is not theft and so the laws do not apply. Copyright and patent bar independent creation, but not tradesecret. No doubt countless production secrets have been independently developed by competitors. When one trys to patent something, these come out of the woodwork as "prior art". But independence is a very hard burden to prove. Any communication from one firm to another, especially the movie a knowledgeable employee from one firm to the other, destroys any notion of independence.