It's funny becuase you really mean it!
That's because it's true. Granted, they say that every cyclist is a doper, but when Armstrong kept winning the Tour, it was nothing but bitterness and jealousy by the French. And it would be the same for an Englishman.
At first it was just the snide remarks, but after he tied and then passed Anquetil and Hinault, it was "He's doping!" Just like this nonsense here. No evidence, just unfounded accusations because their competitors are getting beat.