Is Manchester United really cursed??????? Or there is something fundamentally wrong in that club

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I am not a fan of Manchester United either am I a fan of English football....am a huge fan of the La Lagi...a Barcelona fan for life .. But I took time to study Manchester United...
How come players play very well in there various clubs but they come to Manchester United and they become a huge flop...This trend has being observed ever since the end of the era of sir Alex Ferguson the man from Scotland...

This Brought me to ask questions.....is Manchester United cursed or there is something fundamentally wrong with the system....

Good coaches have come and gone after the era of sir Alex( those were the glory days of Manchester United)... But none of being able to bring Manchester to its glory days. also great players of come and did very poorly at the old Trafford.. the likes of Alexis Sanchez,Mason Greenwood,Wan-bisakka, Anthony who is doing very well at Real Betis ...this is the same guy that scored only 5 goals in the 96 games he played we,aring the red Devils jerseys,this same Anthony has scored 5 Goals and 2 assist in over 16 matches played for real Betis...the list goes on and on.....

The very one that struck me was this afternoon when scott mctominay a former Manchester United player who was sold to Napoli just at the beginning of this season,led Napoli to it league title and also won The Serie A player of the year....this is the same player who was playing rubbish at Manchester United....he had to be shipped out to italy

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If you can recall.. Ronaldo,David De Gea were also sold off .these are world class player ..game changer ......

Casemiro have never lost any final in his whole carrier into he came to Manchester united and lost the Europa final to fellow English rival Tottenham Hotspur...
And to crown it all they finished 16th on the table....few points above the relegation zone.... How are the mighty fallen!!!!!!

With all these happenings at Manchester United...one will begin to 🤔 🤔 🤔
Is there something wrong at the old Trafford..
Or are they under a curse????