No, you're right; France more than anyone was responsible for the awfulness of the Versailles Treaty. But if the US hadn't gotten involved, the war would've ended indecisively, and the French could never have demanded and gotten such terms. (The Austrian Empire would probably also have been kept intact, and Italy would have had little chance of stealing the South Tirol.)
A negotiated peace in the west would probably have also repealed the horrible peace in the east. The Germans defeated Russia completely enough that they could get whatever it occurred to them to demand; the resulting treaty was almost as hard on the defeated as Versailles, even though Germany wasn't actively out to destroy Russia, and it certainly didn't help the Whites in the civil war.
A negotiated peace in the west would probably have also repealed the horrible peace in the east. The Germans defeated Russia completely enough that they could get whatever it occurred to them to demand; the resulting treaty was almost as hard on the defeated as Versailles, even though Germany wasn't actively out to destroy Russia, and it certainly didn't help the Whites in the civil war.