Exactly. Fossil fuels and rare earth metals are already considered to be a national security risks. Depending on a currency with huge energy requirements only multiplies this risk, which further incentivizes war.
Energy scarcity is a thing of the past for anyone who wants it to be. Between solar and nuclear, it's a helluva lot easier to get basically unlimited renewable energy than it is to go to war. Malthus hasn't been right about the way the world works in 200 years