I agree.  Violence solves many problems, nearly all of them for some people.  Violence toward Native Americans was essential to the existence of the country, as violence toward Africans was necessary for accumulation of wealth.  Given America's ongoing wars all over the globe, our schools of torture and violent support of regime change throughout the world, our criminal war in the Middle East, etc., violence is extremely popular and effective for those who lack a conscience and are ruthless.  

For victims of violence, even if they are deeply peaceful people who would prefer not to be attacked, sometimes violence is necessary if they wish to live at all or to protect people and places they love.  But that's not their fault, it is the fault of aggressors.