Why do we have to feel or say sorry to Mbappe?
He is very ambitious, has high ego, want to win UEFA Champions League and he left PSG, joined Real Madrid for this title, but he did not contribute enough for Real Madrid in two quarter final matches.
He is responsible for this failure of Real Madrid because he is an important attacking player in the club, and contributed nothing in two matches. If he want to win UEFA Champions League title, he must play better next seasons.
I don't see anything wrong in being ambitious and yeah, Mbappe had a bad game and so does every Real Madrid player. They were all poor and less threatening in front of goal. So it's unfair to throw him under the bus for their elimination from the champions league. Remember, "a tress cannot make a forest". It was a team performance and all of the players should be criticized for such a lackluster display.