It was made VERY clear, that the mining would destabilize the entire planet.

There's so many examples. I mentioned this the other day: there was at least one instance of the Japanese Navy leaving soldiers from the Japanese Army stranded to be captured/killed because the Navy wanted to make the Army officers look bad/incompetent. There was an active rivalry encouraged by Tojo/Hirohito between military branches because they thought the competition would create the survival of the fittest with only the best personnel rising to the top. Instead, it led to perfectly capable leaders getting undermined by careerists and opportunists while capable soldiers were needlessly thrown away.

Meanwhile, the Allies had cooperation not just between their own military branches, but coordination across multiple branches in multiple countries. You had British pilots flying American paratroopers with Canadian commandos attacking from another direction on D-Day, for example. American engineers helping design Soviet tank factories. Chinese guerillas recovering downed British, American, and Soviet pilots.

We have real-world examples of how fucking dumb fascists are with even more examples being made today and the fascists are doing what they do best: making shit up to get mad about, then taking actions based on the shit they made up that's fake.