https://www.economist.com/blogs/gulliver/2017/05/recline-and-fall
Apparently it is well understood that the guy in front “owns” the right to recline.
An interesting discussion on the economics of that right ensues.
Personally, I agree. Additionally, with newer seats that slide forward when the back reclines, the disruption to the guy behind is minimal. There’s a reason why seats in front of emergency rows sell last - people don’t want seats that don’t recline.