You can't really make a valid comparison.
When you have treaties with other countries and they are attacked, it's they same as if you were attacked.
Many people here have relatives in Europe that weren't even a generation away.
Germany had already attempted to take over Europe.
The German policy of being the "master race" was frightening.
Americans knew what was happening in concentration camps.
There are many reasons why we entered the war. You can't make the same comparison with Iraq.
Hello? We didn't have treaties with anyone in Europe. We have plenty of Kurds and Iraqis living here. The concentration camps never entered into it.
Your reasons for why the US entered WW2 are as bogus as your reason why we shouldn't have gone to war in Iraq.
Anyone excpt England, France and Italy.
Treaty of Versailles
Signed on June 28, 1919, by Germany on the one hand and by the Allies (save Russia) on the other, the Treaty of Versailles embodied the results of the long and often bitter negotiations of the Paris Peace Conference of 1919.
The outstanding figures in the negotiations leading to the treaty were Woodrow Wilson for the United States, Georges Clemenceau for France, David Lloyd George for England, and Vittorio Emanuele Orlando for Italythe so-called Big Four. Germany, as the defeated power, was not included in the consultation.
1930 – 1939 World History — Infoplease.com
-------This of course led to the formation of the "League of Nations". While Woodro Wilson did negociate, the Senate refused to sign, but the US held to the tenats of the treaty.
barely a hundred thousand Kurds live here.
I'm guessing less than a hundred thousand Iraqis live here permanently.
How many English, German and Italian live here. I suspect quite a few more.