Demographics is destiny.
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Not only that, all the warrior genes were ‘killed’ out of Western Europe. The avg Western European male is a total fruitcake.
Maybe I should help out...
Tribal peoples lose far higher percentages of their population to warfare than any modern nation has. Yet they go on fighting. Because they have to. And want to. If European countries became less warlike, it’s because they didn’t have to be, or want to be, warriors. It’s not about genes.