However an overwhelming majority of men are not violent. Yet, they loose in court to women.
Yes. And often women lose to men. On the whole, though, more women win custody battles. In other legal areas it's closer to 50/50.
but who says that much more men did not die during work striving for their rights or their families of which women were part of?
Probably far fewer than the number of women who died in childbirth striving to create that family to begin with.
Back 100 years ago, courts were a joke, a Wild West no truth to the accusation jury.
?? Courts weren't a joke. Indeed many of the legal precedents we live by now were created back then. They were just enforcing bad laws.
What equality are you speaking of?
Legal equality.