And then there’s the German pioneering use of poison gas.
Yes, American support for WWI is overstated today. Midwestern Progressives led the opposition to American involvement. Wilson actually campaigned on keeping America OUT of the European war.
Any such discussion is meaningless without a timeline. Late 1914 was very different from early 1917.
Same as national support for war in WWII. September 1939 very different from January 1942.