Uh, ok.
1) Crime rates take population into account. Canada has a homicide rate of 1.5 homicides per 100,000 people. The US has a homicide rate of 5.2 per 100,000. Canada has a less than a third of the homicide rate as the US.
source:
https://www.oecdbetterlifeindex.org/topics/safety/
2) Although Canada has a low population density overall, it is about as urbanized as the US (actually even a tiny bit more) - 81.8% to 81.6% - indicating that the same proportion of people in both countries live in cities.
source:
https://www.cia.gov/library/publications/the-world-factbook/fields/2212.html
3) We're not considering a ban on all guns, the right to firearms is in the PC constitution and I thought there was no disagreement on that. What we're talking about is gun control, limiting the kind of firearms that can be made available, limiting who can buy a firearm, limiting when and where you can use a firearm, and enforcing a level of training and discretion for those who own firearms.
4) There are a lot of guns in Canada. Why aren't we shooting each other up like you guys do in the States? Because we have gun control. Canada fits perfectly in my argument because it's an example of a country with many guns that also manages to not let that cause an exorbitant amount of violence.
So yes, let's have gun laws so we can have our guns and also be safe like Canada, and not the United States.