Okay, a few things, "French" is a nationality, the nation of France is a country with several different and very distinct cultures and ethnicities. Also the origin of this meme is most likely BRITISH and not American, both from the spelling and also because hating the French with no actual leg to stand on is a very British thing. The rivalry goes back MANY centuries and stems from so many things including the mutually incestuous royal families competing over Empires and more recently from how France shook down during WW2 (far more complicated than usually portrayed in British humour) and just from competing in sports. Some anti French sentiment exists in the US of course, partly from WW2 and "War on Terror" propaganda but mostly because of people growing up on British comedy especially Monty Python and Top Gear and parroting things and also because Paris is notoriously unwelcoming to tourists and for many those two things are their only real experience. To everyone, lighten up, and not everything, especially hating on the French in a nonsense and silly fashion, is about America.