How does this exactly work?

It was meant to be ironic.
For those who don't know it: it's a book Hitler wrote in prison, before becoming the "Führer" (leader) of Germany. It sets the basis for the Nazi(onal Socialist) movement that ruled Germany for a couple of decades, during which it started, fought, and -thanks God- lost WWII, and murdered literally millions of people, mostly Jews, but also many from other minorities, causing in all, an unbelievable number of dead, not only among Jews but also among all the countries that were involved in one way or another in the war, including but not limited to England, France, Poland, the rest of Europe, US, and even Japan. And of course, one of the worst hit countries was Germany itself.

No, I do not agree neither with Hitler's ideals, nor with anyone who claims one race or one culture to be better or worse than others, least if those claims are based on the ability or lack thereof to wage conquest wars, or to defend themselves from others trying to conquer them.
Brute force is not superiority.

I originally only meant French being a pro or a con as in that page being a fun chance to practice another language or requiring intensive use of an automatic translator. Never thought I would get an answer like that...

Enough said, I believe. This is already waaaaaayyyyy off topic.

"My problem w/ the Frogs is with their national attitude towards us “yankees” "

Sounds like that is a bad attitude towards their nation.

You don't like being called "yankee", and probably you also don't like being called "gringo", nor "indian", but still you call them "Frogs".
You claim they look down on you because they're more "cultured", but you look down on them because you bath more often.
You criticize them for not being able to defend their country, and pride yourself on being half Mohawk, when Mohawk also lost their country to whites; and you forget that with Napoleon they showed they knew perfectly well how to be a "superpower" themselves, for whatever that might be worth. And come on! Since when has fighting been what makes a man?! (or a nation)

Let's try another book:
"He that is without sin among you, let him first cast a stone at her".

You really should revise your own attitude towards them.

And, yes, that note on Brad Stine is a good addition (and much needed). We all use false prejudices in jokes every now and then. But it's a must to make sure everyone knows they're meant as jokes, and not to believe them onself.

And don't forget that even though some Californian wines and cheese are without a question better than some French ones, the opposite is also true. (I guess much the same would happen with just any coutry). So saying that either ones or the others are better, is a mistake. (And it still holds true that the techniques used in California are pretty much the ones French and other Europeans invented, so some credit is still due there).

Now let's not take this question any farther. I really don't think you mean that bad towards French, nor me towards you, and if we keep this going, it's not going to take us anywhere. I just couldn't let an attack on any culture pass by un-marked.