Steven Pinker is trained as a psychologist. He has no actual expertise in history or sociology. He consistently misrepresents data and champions philosophical ideals that have little interface with actual reality. So no, quoting him as some kind of authority counts for exactly nil.
Read The Darker Angels of Our Nature for a thorough take-down of Pinker written by actual experts in the fields that he pretends authority in. He's a crank.
"In The Darker Angels of our Nature, seventeen scholars of international stature evaluate Pinker's arguments and find them lacking. Studying the history of violence from Japan and Russia to Native America, Medieval England and the Imperial Middle East, these scholars debunk the myth of non-violent modernity. Asserting that the real story of human violence is richer, more interesting and incomparably more complex than Pinker's sweeping, simplified narrative, this book tests, and bests, 'fake history' with expert knowledge."
And aside from that, how exactly are you going to refute somebody's expertise when you don't even know anything about or understand their theories? Until and unless you become fluent in cultural transformation theory, I don't think you've got anything meaningful to say about this.
Pinker's stupid generalizations aside, half of all women who are murdered in America are killed by current or former intimate partners. One in three women are raped or nearly raped. 85% of women have been sexually harassed - beginning in childhood.
https://www.cdc.gov/violenceprevention/featuredtopics/teen-violence-impact.html
Every day about 360 teens are treated in emergency departments for assault injuries.
Homicide is the 3rd leading cause of death among teens.
Female teens are more likely than males to experience three or more types of violence, as are sexual minority teens compared to their heterosexual peers.
Gun violence is the leading cause of death amongst children in the US.
Less war than in Roman times doesn't equate to less violence in society and also has little to do with the other components of a patriarchal dominance hierarchy system. You are deeply out of your depth here. Give it a rest.