Oh, there’s certainly a link, albeit somewhat tenuous. Brexiteers continue to believe we’re headed for the sunlit uplands (whilst Farage has fucked off after being proved to be a complete liar (the fisherman on North Shields Quay can’t believe that a career liar lied to them - they won, they need to get over it) and little Tim Martin is full of backtracking bullshit). Newcastle fans who enter the ground still have this belief that Ashley is going to deliver them to the promise land and he’s doing the best he can (similar to the Brexiteer views on Johnson’s handling of the scamdemic). As I say, tenuous yes, but there’s certainly a casual link.
For every time you hear ‘but we have our sovereignty’ (we always did) just think ‘support the team, not the regime’.