I think the biggest source of violent is not that we don’t care. It’s because we care too much. It’s not that government do too little. It’s government doing too much.
There are so many criminalization of victimless acts that people simply channel their ambition through worse means.
Gun control will not solve problem. In fact, it makes things worse. Mass murders tend to happen only in gun free zone.
Prostitution, polygamy, concubinage, cohabitation are often restricted or prohibited. So people rape.
Imagine a world where you can’t buy and sell stuffs? What would you do to get food?