Well I've read theories on what a 51% attack will look like many years ago. I felt good about the outcomes eventually when I tried to play out the game theory. I'm trying to understand how you think it will play out but it doesn't seem like you have played theory out to its logical conclusion. A 51% attack will most likely lead to a growing number of unmined transactions in the mempool with inflated transaction fees. It's basically free money sitting there for miners to take. This incentivizes miners to break the law. It also incentivizes miners to leave the US and incentivizes new miners to pop up in other countries.