You don’t have to defend RP because you sound like you are him.
You are a complete idiot if you think we shouldn’t have entered WWII. Of course that’s understandable since you appear to be RP.
Furthermore, WWII was not a result of us entering WWI. WWII was a direct result of the sanctions imposed on Germany at the conclusion of WWI.
Finally, our invasion of Iraq has nothing to do with the fact that the Arabs always have and always will desire the complete and utter destruction of Israel. The islamonazis don’t hate us or Israel anymore now than they did 30 years ago.
If the U.S. had not entered the Great War on the side of Allied Powers, and prior to entry leant them enormous matrial support, there would never have been an onerous Treaty of Versailles. No one is more responsible for the rise of Hitler than Woodrow Wilson.
Without Nazism, Zionism would be a romantic, nostalgic, backward looking movement with a tiny number of activist adherents (in my contrafactual world, anyway.)