Much of that 286 thousand years (or whatever) was spent in band-level hunter-gather societies. These societies have a number of nice features: People tend to be healthy, and in good times they may only work 20 hours per week.

But according to my anthropology professors, these societies tend to have very high death rates. For men, the lifetime risk of being murdered or killed in intergroup fighting runs about 10 to 20%.

So there's a real possibility that the modern era is very safe by historical standards.