Not quite understanding modern outrage

[Eaglelord17]

Well said Paul. My relatives fought the British in the Revolution (over civil rights)White slave owning colonists who refused to pay their fair taxes over a war they wished fought, in the War of 1812 over the impressment (enforced slavery) of seamen America trying to take over the whole of North America through Manifest Destiny, the American Civil War (over slavery) Political domination of the South leading to them wishing to succeed from the Union, Germany in WWI (over aggression) WWI was more a prevent empire building and trying to build a empire, realistically it wasn't Americas war, Japan and Germany in WWII Same reason as WWI, Germany Japan and Italy wanted a empire, other nations said no.
Today we are at peace with all these enemies (except North Korea). Being at peace means a level of reconciliation and an understanding (but never a denial) of the causes of war.

The understanding of what the causes of war are is changing. The farther we get from a conflicts the more we can actually analyze it in a unbiased manner. For example each one of the wars you listed can mostly be described in another way as it all depends on your view point. I will put in yellow in the quote what someone else might see them as. Some of the wars listed America was the aggressor, others America was attacked, overall though history is written by the victors and it takes centuries for the conflicts to be looked at from a unbiased standpoint (look at poor Napoleon for example, called the devil for over 100 years, finally no longer demonized to the same extent).