Part of the case for 20mph is that if you’re on foot and hit, you’re less likely to be killed. So it’s OK if you survive with a broken body, is it?
Is it beyond the wit of government to remove the source of danger (priority aka unequal rights-of-way) by changing the rules of the road and making drivers liable in event of an “accident”?
Also it wouldn’t be a bad idea to scrap seat belts, thereby making drivers feel less safe and take greater care.