Baloney, it was the punitive nature of the sactions ($s) against Germany that created the conditions for hitler's election. Sure, France failed to do anything when hitler put German troops into the Rhein. However, invading Germany to stop that move wouldn't have prevented the war either. And frankly who knows which direction the axis/allied allies would have gone had the above invasion from France into Germany taken place.
No you miss the point, the Versaille treaty was too punitive, but soccermom is pointing to the more salient international failing, that of not enforcing the arms limitations. For example in 1935
Hitler Begins Military Draft
Hitler begins military conscription in Germany. This is a direct violation of Versailles treaty.
http://www.decades.com/Timeline/n/250_2719.htm#
This was compounded by the weak response to his aggression in particular his move into Chekoslovakia. I have read that his generals were ready to depose him for this action for fear that he was unleashing war with France and Britain, but when they failed to make the strategically wise decision to oppose him at that juncture, they flipped and followed him.
http://www.2worldwar2.com/causes-of-world-war-2.htm
Thus, analyzed as a proximate cause, soccermom is correct - failure to band together with the western powers to enforce a treaty led to WWII.