Since life emerged competition for resources has been its primary imperative. Its brutal but its fundamental to life in all its forms. Humans manifest this competition via trade and war.

War being the ultimate expression of the competition for resources- territory, food, resources. This is programmed into our DNA.

You can preach pacifism but you only do that from a privileged position of being a first world citizen beneficiary of the brutality and resource hegemony of your culture. If you want to preach pacifism surrender the wealth and cultural advantages and privileges you enjoy...because it was built upon war and resource hegemony.