Sure, in the context of broad safety you have a point. Of course, you are more likely to die in places where police are responsible for your protection. The safest places people inhabit are their home, their work, places with private security measures.

The negligence you speak of, how widespread would you say it is? Would you say the EPA dropped the ball preventing the east Palestine Ohio train derailment? Would you say that having some hard cutoff for how many chemical train cars until the train is reclassified? I imagine you would agree, that the chemical company sending 59 (oh w/e) train cars instead of 60 so that they are under easier rules, is kind of bullshit.

If the company is following the rules then they can largely get away with it when things go wrong; if that company had actual liability for whats in the train cars, then they would have insurance. That insurance would be prorated on the safety profile of the train, and it would fix the hazzard or pay the claimants their due. These regulations only exist to cement decrepit companies monopoly over you.

I have no faith that "negligence" in the public sector will improve. The roads, the enforcement of driving conduct, that will not improve. The safety, security, and reliability of cars will improve, because there is still competition from self aware drivers.