possibly because Europe has long history, and thus has been able to explore many political paths, some more successful than others. same goes for aisa and Africa. the only continent really excluded is North America and that's because it was only relatively recently that it has been densly colonised with humans.
if however you are more concered with relatively more recent phenomenia, you may want to look at each individuals reasoning (and you have plenty of indivuals, as its plainly so alluring) for their political, and ask yourself, is it really so hard to find politicians who agree with that viewpoint in non-European contries.
ItalyProbably Italy. The fascist government started in 1922 under Benito Mussolini.
Benito Mussolini founded Italy's Fascist Party.
Mussolini
Benito Mussolini.
Benito Mussolini.
Italy
During WW II, Europe had three totalitarian rulers, who were Adolf Hitler, Francisco Franco, and Benito Mussolini.
Benito Mussolini
Mussolini from Italy.
In Italy :]
Italy
1922