I think you misunderstand human nature. The problem isn't them. They problem is us. That is, it's humans in general, not just the billionaires.
If all the billionaires left for Mars, we would not have peace on earth. We'd have a bunch of people fighting tooth and nail to be the ones to replace them.
Ah, I see. Well, there was no /s tag, and I've seen similar views here stated seriously - that it's all the elites' fault, and if we could get rid of them, we'd have paradise. So... yes, I misunderstood.
If all the billionaires left for Mars, we would not have peace on earth. We'd have a bunch of people fighting tooth and nail to be the ones to replace them.