They've got the Premier League. Why do they still care so much about us? Because they're insecure people who aren't happy with their own lives, so they choose the most successful team when they're growing up and attach themselves to it to try and get some reflected glory. And then they realise that even though their team has won something, they're still the same loser. And here ends the pop (i.e. fake) psychology lesson. It's the reason why Leicester were able to win the title in 2016 and not turn into a bunch of wankers, because none of their fans chose them because they wanted to pick the winning team.