"Germany is for me one of the very few examples of spreading democracy through a war (like it was/is planned in Iraq)"

There may be a better explantion for German democracy. Notice that nations that have a history of killing or expelling all their Jews seem to eventually become democracies and Jew friendly (e.g. Germany, England, Spain, even Poland is having a philo-Jewish resurgence). Perhaps the problem with Iran is that they weren't able to kill or expel their Jews (see Esther).

The aletrnative explantion is that it takes about 2000 or so years for another religion to get comfortable with Jews. Give the Moslems another thousand years or so and we'll all be friends.