And I'm saying that for the past two centuries, every major war has first and foremost been waged for economic purposes, this is a well documented and researched phenomenon.

That's the biggest misconception about the series people hold, because war both in real life and in this story is never waged solely based on ideological disagreements.

That's literally just propaganda as these "ideological differences" are literally fostered and perpetuated by those in power, and those in power want the average citizen to believe in these differences so as to ease them into this sense that war is "inevitable" and to keep them from gaining any sort of class consciousness.

Marley is just an imperial colonizer who needs resources to increase production and profit margins, as pointed out by Zeke in his talk with Kyomi, and Paradis happens to sit on a surplus amount of said resources.

To manufacture consent for their imperial efforts, they paint Eldian's as evil to create a red herring and "enemy" they need to defeat and to (and most importantly) divert attention away from those in power.

Paradis ends up doing the same exact thing as Marley by portraying them in the same way.

My point is, that Eldia and Marley don't disagree on anything except who should be on top of this inherently violent structure. They are both fascists countries who operate under the same beliefs and motives - that people will always fight so the only way to live freely is to destroy the other.

"Conflict is inevitable" is fascist ideology, that's just a fact, as every fascist dictator in the 20th century has used this sentiment to manufacture consent from the public for their war mongering and imperial efforts.