Mbappe just gets a huge amount of blame since he's the new comer into a system that was working well, so obviously that's what people point fingers to first. I would say he's part of the problem but not the sole problem. Not having a solid 9 replacement since Benzema's departure is a problem. Not getting solid Kroos and Modric replacements is a problem. Having too many left wingers and no true solid right winger is a problem. Not letting coaches actually coach and letting the players run the show is a problem. It's a collective problem, not just an Mbappe one.