I have bike commuted in the following places without near death:
* New York City
* San Francisco
* Portland
* Seattle
* Raleigh Durham
* Chattanooga TN
* Salt Lake City
For sure there are some cities where biking is terrible, but I am not sure it’s a “majority”. It also takes some awareness to ride your bike safely in a city, but actually, doing anything in a city takes a bit more awareness and caution.
Is it possible that you could avoid death while cycling by improving your cycling skills a bit? You could join a group of (still alive) cyclists to learn the ropes.