I draw comparisons all the time and hence, not the one to ask
as for the passion and tribalism in football, for good and for bad, that is what makes it the biggest sport in the world... just some examples --> Boca Juniors is sponsored by Coca-Cola but the traditional red logo of Coke is deliberately changed to black for Boca because their biggest rivals, River Plate, wear red and white... Tottenham Hotspur fans refer to Arsenal as 'Woolwich Wanderers' and 'refugees' because Arsenal were originally a South London club even though the move to North London occurred more than 100 hundred years ago... Rangers fans sing that the famines are over so why don't the Celtic fans go back to Ireland... you ever wonder why Barcelona never have a white away jersey etc.
and just sometimes, it is fun to hate on Liverpool