I genuinely find them fascinating. Their strangeness isn't replicated by any other set of fans of any team in any sport.
I don't know if the cult attracts the personality type or if it creates them but they are just endless supply of unsurpassed oddness .
Paranoia, delusions of grandeur, phoney elevation of football to look passionate, defending racism, pretence of indifference to us but lose their ship when we paint the liver bird blue, celebrate like they won the treble on sunday etc
All of human weirdness is there.