By the way, these are meant to be funny. You can be serious, but please try to be silly or funny.
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Pro: Canada won their independence peacefully. They didn't fight to earn their freedom, and therefore, they don't deserve it. That area should be part of the United States. However, those Canadian wimps had to get their freedom peacefully before we could invade. Therefore, we should blame Canada from taking away from our economy. If we did take over Canada, we would literally control the entire maple syrup industry, and then all our breakfasts would be pleasant. Not only that, we would control the pleasantness of breakfasts all over the world. First breakfast, then lunch, then dinner, then the world.
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I am not trying to offend any Canadians, but this is meant to be a silly debate. I mean no harm to any Canadians here.