Are all wars economic wars?

The idea that war is a positive economic engine is a myth.

While a very few industries may benefit from war, wars hurt the economy, they do not help it.

This is one of those specious platitudes which insufferably ignorant idiots banter about.

Most of all wars in human history were for economic gain. Not all, but most. A great number more were religious, driven by ideology/culture, national defence against aggression, or something else. Of course, there is a large amount of overlap. The second world war was both economic and ideological.

It's not a matter of opinion; war almost always happens for economic purposes. The other most common is ideological, like the Vietnamese or Korean wars.

humans are "killer apes"

cooperation is the best survival strategy but too often we "shoot first" ask Q later

family tribal wars are culture not not economic

group conflits are often over reseouces

I pretty much concur with your statement.