The greater violation of liberty is preventing many entities from using an idea rather than a single entity losing the opportunity to profit from an idea.

Especially because a fire inventor being deprived of profit is not what is happening. What is happening is someone uses a broken system to register their idea of cooking rabbits after watching other people cook different animals. He is then given exclusive rights to cook rabbits, and he goes directly to extort shells and shiny rocks from the guy two caves down who has been cooking and trading rabbits for years now.

If we cannot have patents without "scan-to-email" extortionists we should not have patents. Creating an incentive to do no B2C business because it is more profitable to sue other companies for using obvious ideas is contrary to the intended purpose of the patent system anyway. Either get patent examiners that can do it properly, make it dirt cheap to challenge a patent, or shut it all down.