There was a serious oil crisis in 1973 and then, Europe was far more dependant on middle-east oil than it is the case today.
We have diversified. Nuclear energy takes a part, wind energy is growing, energy conservation is everywhere, cars consume less than they did. Natural gas heats more houses than fuel oil .
So, dependancy on Iraqi oil is much more a problem for big oil companies than for entire nations.

As for ingratitude, well, my father married an american and my grandfather was a veteran of the first world war (president of the Antwerp veterans till his death), my mother was for years part of the committee that organized remembrance day at Neuville-en-Condroz.

But most importantly, it's not because we have been freed by the Allies that we have no right to disagree with the present US foreign policies.
After all, the charts of the United Nations were meant to prevent unprovoked wars, as a result of WWII. We built all kinds of international treaties to make living on our planet a little safer for circulating people and ideas.

Raoul