Its so easy yet you refuse to do it. You just spout nonsense like Morata is 'much superior in the air' when they are stats that track how good you are in the air.
Lukaku wins more aerial duels per game at the same percentage as Morata. It is a fact that Lukaku is better in the air than Morata.
Lukaku beats his man more times than Morata per game, at a far greater percentage. So it is a fact that Lukaku is better at holding up play than Morata.
Lukaku creates chances at the same rate as Morata, so it doesnt matter how much better a 'footballer' Morata is, he isnt more effective than Lukaku.
Morata is not a better player than Lukaku, the only strikers better than Lukaku are the world class strikers like Cavani, Lewandoski, Ronaldo.