Do other countries with lower rates of gun violence (per capita) have fewer men (per capita)?
We maybe have some hope of doing something about mental illness. Not so much for the condition of male-ness. If the demographic is the intersection of mentally ill and male, it's the illness dimension that's potentially treatable.
Are you saying this is nature/genetic or nurture/environment?
Environment isn't "nurture". If you were born in the 70s your parents weren't intentionally giving you lead poisoning and lowering your IQ and making you prone to violent crime; it just happened on its own.
> actual problem
as i mentioned in another comment, male violence is largely a product of no fathers or strong male figures present.
are children of lesbian parents incarcerated at a higher rate?
Parent is sexist, but masculinity can transcend gender which is still incorrect for their... "point".