We should prosecute the US institute of traffic engineers since it’s literally in their model policy that streets must be designed so you can go fast enough to kill yourself, and the correct number of pedestrian deaths before considering any mitigations is significantly more than none.

So if you go faster than kill-yourself speed a missile gets fired and evaporates you? Or how are you supposed to make a street that doesn't allow you to go fast enough to kill yourself?

Make 'em wiggly and add stop signs.

https://en.wikipedia.org/wiki/Traffic_calming

https://visionzeronetwork.org/about/what-is-vision-zero/