Real Madrid is arguable a place to realize dreams and on the other hand in the same place have so many talents wasted. Hazard was a good example. The case is the same with Mbappe presently, Mbappe is finding it difficult to settle down at Real Madrid, making people to question his value and doubting his ability to perform at the biggest stage. Mbappe is a world class player that have constantly showcased his class for France and for his former club PSG. In as much as people are expecting mbappe to hit the ground and get things moving at Real Madrid, the fans should give him time to settle down in Madrid soon.
Man are you serious about talking that nonsense? Mbappe has been there for about 3.5 months now and you describe his situation as if he was sitting on the bench every game because Ancelotti wants to get rid of him. He is not in great shape, which I agree with, but that has nothing to do with a wasted talent at this point. That is ridiculous.
Then talking about Hazard, he had severe, really bad injuries all the time and missed almost all the games there. There is nothing anyone can do about that. There have been players that are extremely susceptible to injuries and nobody can find a proper solution for it.
A really example is Gareth Bale. He was healthy and yet he was willing to sit on the bench, waste his talent, play golf and take the salary. That was a real waste as you mentioned it here, but you took the wrong players to convey your point.