Why do British people like Arsenal and hate Chelsea?

Your question is too one-sided. Each team has its own fans. It's not that the British hate Chelsea and like Arsenal. Arsenal's own fans are still clamoring for Wenger's dismissal. Chelsea's 20 12 Champions League victory has given the Premier League a facade during its lonely period. Many people still recognize Chelsea. Another example is Shanghai Shenhua and Shanghai, both teams in Shanghai, but different people have different views, so we can't kill them with one stick.