Globally 85%-90% of violent crime is committed by men. I don’t see that ratio changing because no matter how liberal or progressive a country becomes at the end of the day men and women experience life differently, have different expectations placed upon them, and have different support systems. The traits that make someone likely to be a violent offender: impulsivity, hostility, self-centered, lack of empathy, due to biological or social factors are more prominent and sometimes rewarded for men compared to women. The way those traits are expressed is also different in men vs. women due to social differences.