I'm not so sure I follow this argument, one could say the Earth itself is only critical infrastructure because it "exists". So therefore if we destroy the Eart

I'm not so sure I follow this argument, one could say the Earth itself is only critical infrastructure because it "exists". So therefore if we destroy the Earth, it wasn't actually "critical" infrastructure, even though any associated infrastructure on the Earth went along with it. Maybe the distinction needs a little more fleshing out.