5.7 billion people refer to it as football, 300 million refer to it as soccer. Any time you see the word football and any non American person, it's probably talking about association football.
340 million: Grid Iron
60 million: soccer
15 million: Aussie Rules (proper footy)
10 million: Rugby League
5 million: Rugby Union
Probably some Gaelic Football in there too for good measure.
More people in the world eat rice than bread, does that mean cultures that eat bread are wrong?