> Consider this - If a "fascist" is democratically elected, what wins: anti-fascism (presumably from the perspective of an opposing 3rd party, as Le Pen doesn't describe herself as a fascist); or democracy?

This actually happened in recent history. Just because Hitler (and yes I must unfortunately rely on such a reference, and no, Le Pen is not Hitler, but it provides a good example of far-right vs democracy) was elected doesn't mean the entire world should roll over.