Jesus. Fucking. Christ, I can relate
Being 2 meters (6 foot 6 in yankee units) the long haul flights I've done from time to time have been absolute killers. Forget about sleep, forget about a drink, and abso-fucking-lutely forget about the entertainment system, as that will be comfortably squeezed against your lap.
I will (semi) politely to turn your seat rest back up or ask for another seat when the douche declines.
Please, for the love of god, don't fully recline your seat
I'm out