I can agree with your points, Habu, but I suppose we'll have to agree to disagree with the level of direct influence Versailles played.
The whole post war world economy was a house of cards in Europe, with German reparations helping France and England pay war debt to the US, and the US investing in Germany. You remove US investment and house collapses and everybody suffers (and statistically with some general degree of parity - the figures for unemployment and production loss are quite similar for the US and Germany). Then there was the adherence to the Gold Standard and its impact during this period on Germany, Great Britain, France and the United States. This may be the key factor in the depth and severity of the depression for any particular nation.
There was a lot of hardship and fear during this period. Facsism (and to some extent Communism) saw growing support in many countries including the US and Britain. However, I would blame a lack of experience with democracy and a desire for a new "Kaiser" with the rise of Nazism, IMO, my $0.2 etc.
Charon
Wow, Nash Hijack award in the works here

Tom Cruise really Suxxor. So is Vin Diesel. Saw a bunch of trailers this weekend for upcomiong films and several looked great until it got to the leading man.