What might the U.S have done to prevent the harsh treaty of Versailles?

The U.S. might have insisted that the Armistice that the Germans signed, based on President Woodrow Wilson's 14 points be honored. When the French proposed that land be taken away from Germany, resulting in 20 million Germans being put into other countries, Wilson might have said "No, that would be a violation of the Armistice that the Germans signed in good faith." When the French proposed that Germany and Austria be forbidden to unite, Wilson might have said, "No, that would be a violation of the Armistice."

Wilson might have told the delegation of 117 Jews to stay home instead of bringing them to France to participate in the treaty negotiations. The Jews were there to make sure that the Jewish bankers in New York got repayment for the loans that were made to France and Great Britain. Wilson might have told the British and the French to repay these loans themselves instead of forcing the Germans to pay the bill for the whole war.