I don't understand the point. Wilson actually defeated Hughes and didn't run in 1920.
The Wilson isolationist myth needs to die. He'd probably suffer the stroke earlier while in office if he took us into war (which he would have just like Hughes) giving us President Marshall.
Hughes didn't take us into the war because, by the time Congress would even consider it, Germany was too close to Paris. He didn't care about France.
In retrospect, it may have been better if France had won so Rene Bousquet never came to power. Without that, we probably would never have had the Wars of the Coalition.