We know what his form was like at Chelsea but the injury problems that plagued him at Madrid completely ruined his career. When we talk about respect of course it has to be, but indeed the condition he is in right now doesn't really reflect a good player especially his career is over now.
It's really unfortunate how Hazard career went out in the middle of other players who aspired to be at a club as big as Real Madrid. But for Hazard he was just unlucky. Injuries hit him for quite a long time, so that Ancelotti was reluctant to put him on the field. Now the opportunities are dwindling for him and I'm quite concerned considering at Chelsea of course Hazard performed brilliantly.
I can ssy that hazard is the architect of his problem.
I say this because I have seen two ways in which hazard would have avoided his downfall in Real Madrid
The first way was never to go to Real Madrid because he was already a king in Chelsea. Maybe just a chess for Ballon d or confused him.
The second Chance was to leave Real Madrid immediately he was not having playing time. Instead. He said that he will remain and prove himself that he doesn't want to leave Real Madrid a failure.
That decision was not necessary, dude.
It is easier said than done as you describe it. It is always relatively easy to say things like that in retrospect and giving up right in the moment when you can't find your way into the first 11 of the team is probably also not right as we have seen examples where players fought their way to the top over a long period of time. Not a striker, but take ter Stegen as an example in Barcelona. Imagine he would have given up as soon as he realized he isn't the first choice. Would have been a huge mistake and now he is constantly playing.
Sometimes these things are mysterious. Real Madrid is somehow known for wasting great talents, or the talents themselves are to blame. It is difficult to tell. Bale was such an amazing player and threw away his career at Real Madrid as well. Hazard was outstanding, a genius with the ball. One can't even trust their eyes when they now see him not playing at all. It's crazy.
Coutinho and Dybala are also two guys who are genius in soccer, but one day they play like real gods, the next game you don't even realize whether they are playing at all.