I have seen a dozen of your messages here but I can hardly see you back up your defence of De Gea with any stats (which you think are trash) or any proper arguments apart from the rhetorical that "how can you be sure that an "average PL GK" like Raya/Sa & co. will do better than De Gea?", which no one can firmly answer since no one has a crystal ball to predict the future, but that "fear of unknown" mentality is the reason why Man Utd has been reluctant to make necessary changes in recent years and fallen behind so much.
Dean Henderson is a very average goalkeeper at PL's standard but we conceded less goals per game with him in the goal in 20-21 (12 goals conceded in 13 games) than when we had De Gea in the same season (32 goals conceded in 26 games). Noting you may say Henderson faced lesser opponents, may I reply with the fact that the average end-of-season league position of opponents faced by Henderson was 10.62 and that faced by De Gea was 10.77 in 20-21.
Sergio Romero has never been considered an elite goalkeeper, but during his time for Man Utd, Romero conceded just 9 goals in his 23 appearances for Man Utd in the Europa League.
You may reply "of course, you face random John Doe teams in Europa League!"
Unfortunately, De Gea has conceded 25 goals in his 22 appearances for Man Utd in the Europa League.
It is the real delusion if one thinks that an "average PL GK" is incapable of withstanding the weight of the shirt of United when we have 2 real life examples that it isn't really the case. To the contrary, De Gea is kinda bad at withstanding pressure and most of his blunders are in big games or big tournaments like World Cup, Champions League knock out, Europa League final or FA Cup Semi-final. De Gea has been a great servant for us and he kept bailing us out in the sour period of 2014-2018, but let's call a spade a spade, De Gea has now regressed to be just another "random average" PL GK and we should replace him, right in this summer, if we are anything close to a serious club.