Sunik
People can disagree on political and social issues and support the same football team. That is okay.
To say our fan base is 100% British is mental.
To say that it's exclusively left wing is mental.
You’re a bit confused I think, the claim from our chum who is an expert geneticist (apparently ) claimed the opposite of your last sentence.
I agree it would be mental to make the 100% claim, there’s you for starters.