sometimes big players like mbape and the likes of Christian Ronaldo could be a major distraction to other shining starts in the team and untill the leave the club, that's when you will notice that there are great replacements that could do literally the same thing they are doing at the attack. It's no doubt that mbape is a good attacker who does is job very well for PSG and his absence would be felt by both players and supporter but as a team, there will always be alternative and a substitute in the event that he's no longer in the team. The team will struggle somehow maybe for few matches to learn how to play without him but overall, PSG will survive and do well even without mbape.
They did the wrong thing from the start, how dependent they were on Mbappe, and that's what made them feel a deep sense of loss after Mbappe said he would not renew his contract and their next season was certain to be without this player. I understand that Mbappe's abilities make them dependent on him, but actually they can already make preparations because in a team players will come and go at any time.
What I see is that they weren't ready for that, so they were confused, and it even took them a very long time to persuade Mbappe, even though in the end they were never able to convince Mbappe again to stay with them.
Now they have to forget about that and better focus on the team to be even better even without Mbappe. There is much they can do instead of regretting Mbappe's departure, because after all it has happened.
These players you mentioned didn't just wake up one morning and became the strongest force in their respective leagues. They actually worked hard for it and rightfully earned the attentions they get in their respective leagues. For a player to be so good that he can single-handedly win important games for his team, it's normal thing for the team to be built around such player. Cristiano Ronaldo and his protege Kylian Mbappe are two players that their influence in any team they're playing for is always beyond normal because of the positive impact they bring to the team.
In the last six seasons, Kylian Mbappe haven't just been Paris Saint Germaine's best player and top performer but has also been top scorer in the French league. That's the kind of impact he posseses and that's why he's move away from the club is expected to affect the team. But even in his absence, Paris Saint Germaine is still the strongest team in the French league and that's why I think they'll succeed without him