It's typical weird writing from Kojima and his team. No regular human being would talk about these themes like loyalty and patriotism in such a weird esoteric way. Same with how the characters talk and interact in Death Stranding. It's like uncanny valley, but instead of visuals, it's the dialogue and character behavior. People eat it up and pedestalize Kojima to be some genius for it though strangely enough.

MGS1 was the exception though. It sounded more natural even if the dialogue was stylized in a Hollywood action way. Kojima hated it though lol