so since Bush proved to us that we as human beings are subject to mistakes by electing irresponsible leaders how can we be sure that it won't happen again?

True Europe is doing well when it comes to the welfare of its people but as you say that socialism will work better in areas where people generally have the same skill set is also very true. due to that the muslims are having a very difficult time in Europe to progress out of slums. In terms of economy the European nations have been going through an economic stagnation for some time now. although good on the outside looking in the question is how long will it last?