That space behind me is not useful to me. My food is still crammed up in the < wedge of the now-greatly-slanted back seat and horizontal tray table. My in flight entertainment screen is now angled down, playing a movie for my belly rather than my eyes.

I cannot open a laptop, because that "relcaimed" space behind me is not the same type of space and is frankly useless to me.

Your argument is why humanity is becoming less civil and intelligent. People aren't thinking. One person shouts, so everyone around him shouts. Now everyone is shouting. The correct answer would have been for the loud moron to speak at a lower volume.

And finally, your argument fails because the last seat in the airplane usually cannot recline. So if you want to be fair, that precludes the person in front of him from reclining, and so on to the front of the plane.