Mate, José Mourinho never really had an illustrious experiences as a player and yet has crafted one of the most illustrious managerial careers in the world by displaying superior knowledge of the game. Your logic of linking player talent with knowledge is pretty flawed my friend. Secondly, are you seriously proposing the notion of banning followers who aren't local to Manchester? Hands down one of the most insanely absurd things I've possibly ever read.
United would be nothing without establishing itself into the internationally renowned football/sports teams it is today. A previous comment is totally right in highlighting how pivotal gaining an overwhelming amount of Asian followers has been in allowing United to evolve into the club it is today.
Yes, Manchester United have followers who display seemingly minimal logic and knowledge on formulating prospective transfers, play-styles and formations etc. commonly through a lecture on social media comment section as if Mourinho is eagerly waiting for their expert advice. Yes, Manchester United are notorious along with other clubs such as City and Madrid for harboring supporters purely watching as underlying glory hunters. And yes, I personally agree having your phone out at a match can be frustrating, consequently tainting the atmosphere of the game. Just deal with it for christ sake!
Just to let you know I'm originally from Birmingham in the UK and yet grew up supporting United the entirety of my life just to trigger you a little more <3
At the end of the day, even though there are many of these individuals who follow football regardless of having either minimal knowledge, passion and talent or all three, who are you to disallow them from following the game? Football is for anyone and everyone. Watching the Russia World Cup displayed how amazing it is to watch countries come together to support their nations. It identically translates into club football, individuals from different backgrounds, ethnicity, countries etc. coming together and supporting their team.
The World Cup was a prime example of highlighting individuals discriminating against people for "Jumping on the World Cup bandwagon". Alright, so my Nan isn't usually an avid follower of club football and might frustrate the hell out of me asking who is who and what happened there when I'm watching my first ever England WC Semi-Final, but does it mean she can't follow the WORLD cup? No.
Stop living in the past and step into the future mate otherwise your hatred will continue to grow unfortunately because it's never going to change in the way you want.