No, not true at all in reality. There are lies and statistics. Yes the U.S has violent crime, but it also has a lots of race and poverty issues that I don't want to get in to. Most of the crime is just gangs killing each other in parts of the city no one EVER goes to.
In the normal and nice parts of the city it is actually pretty nice and safe.
In Canada we have so much property crime, home invasions etc..and a person isn't even allowed to defend their property. You could shoot a criminal breaking into your house, and would have to spend years clearing your name.
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Canada has a pathetic soft justice system, and youth can pretty much get away with anything. There was a drunk driver who killed a family of 4 and only got 3 years in jail, and was out in about 1.5 years on parole!!!! What a sick country.