The nice thing about traffic is that safe driving can be enforced with proper infrastructure where unsafe driving
feels unsafe. And that has the benefit of both forcing drivers to drive safely
and keeping cyclists and pedestrians alive (since they no longer interact with drivers or only do it in ways that are better for everyone).
Not Just Bikes is a great YouTube channel explaining a lot of those concepts, usually by example in the Netherlands. Whereas in North America you have basically motorways going through residential and commercial landuse areas, which feel like, well, motorways and invite driving fast.