Wearing them to the match is part of the ritual, it declares the wearer to be part of something greater, something that pre-dates them and will live on after they're gone. The unbroken sweep of the same colour is part of the atmosphere in the ground.
So it's a big statement when Manchester United fans abandon their red, black and white and start wearing yellow and green. These were the original colours of the team when it started a over a century ago. They're being worn again as a statement about the roots of the club, specifically against their present capitalist scumfuck owners.
The takeover of top-flight football by Very Big Money Indeed affects all clubs, especially the 'big four' in England; Manchester United, Chelsea, Arsenal and Liverpool.
So, where would you go if you were looking for an unwitting army to conscript? If you want unswerving lifelong loyalty in a group tens of thousands strong, where better to place yourself than at the head of a supposed people's revolt in their name?
So it is that we see the recruiting sergeant of totalitarian shapeshifting lizards setting himself up as the Mao of Merseyside, pitting himself against Liverpool's present directors and painting himself as a scouse man of the people.
Laying into Liverpool's owners, Chris De Burgh said
These people are not football supporters, more importantly, they are not Liverpool Football Club supporters and they should go.
As an Argentinian-born Irish aristocrat, Chris De Burgh couldn't mock us more heartily. After the dark day of usurpment we will wonder how we were ever taken in by such talk.
The teams of the Premiership elite have an unmatched devout following, with 50,000 people jostling for tickets at every match, followed by millions around the world watching their every move with awe and adulation. And here he comes riding that focus, the Pied Piper of Argentina, leading us into lizardly dystopia.
If he's being so brazen, he must be confident that there is little time left to confront him. We might have only days to go.