I believe that if men took better care of their health and had less risk taking behaviors and if they were less likely to be murdered than women do they would live longer than women do on average.

If most women smoked a lot drinked a lot more men do, use drugs, eat in a unhealthy way etc they would have a much lower life expectancy and most of they would die early.

Life expectancy is just a math calculation and math can lead to illusory understanding of how things actually work in real life. For example when I was at school I used to read that people a few centuries ago had a life expectancy if just 40 years when there are many ancient paintings and photos of old people( You need to be really stupid to think they were only 40 years old looking that old). That does not mean that most people used to die when they reached 40 yeaes old as I used to believe but it was calculated based on their lifestyle, their child mortality rate which used to be very high and their vulnerability to death caused by infectuous diseases considering vaccines did not existed.

There is nothing biological and genetic that make impossible for men to live longer than women on average in the future.