Don't know jack squat about Canada, while we know way too much about their own country.
The way they dominate everything.
Having the highest rate of women dying in childbirth for a developed country.
Believe in nonsense that should have stayed in the Middle Ages, like demons and witchcraft and that your kids will burn in hell for playing video games.
Leaving people to die because they can't afford health care, while associating free health care with communism for reason.
Firmly believing that poor and homeless people are completely at fault for their situation.
Trying to be "the world police".
Being incredibly prudish, although you wouldn't know it from every movie, TV show and the media.
Workaholics who think if you have more than two hours of leisure time you're a horrible, lazy person.
Obsessed with celebrities who have nothing worth celebrating, tabloid sleaze and scandals.
War-mongering.
Having more Nazis in their country now than Germany ever had, which, unlike Americans, know that was a dark period of their history and have learned from it.
Racism.
They're so warlike, even their national anthem is about war. "The rockets red glare, the bombs bursting in air" is not referring to the fireworks during The Fourth of July.
Speaking of which, someone publicly sings their anthem poorly or forgets the words and they throw a fit that lasts two years. But what happened when someone singing the national anthem here in Canada couldn't remember all the words? The audience helped her sing the rest of the song! 
Think everyone should be either a doctor or a lawyer. If a person gets a lower-paying job, even if they're happy and satisfied with it, they think that person is a loser.
The news. Full of alarmism and very biased.
Obsession with superficial appearance.
Politicians, UGH!
If they had their way, any person considered a burden on society, like the poor, elderly, disabled, homeless, childless, or unemployed would all be put down like dogs. I thought everyone had a right to live. Oh well.
Some things that are good were invented by Americans, like the chocolate chip cookie, electric guitars, beach balls, and the graham cracker. So WHY do they have ruin it all?!
And they ALSO invented machine guns, bazookas, the electric chair, nuclear weapons, cigarettes, and the Atkins diet. Seriously, the Atkins diet and the low-carb craze of the 1990's made me want to end it really bad, although the world ended because of Y2K so I didn't have to. 