It's a cost/benefit ratio problem. Other crypto currencies can achieve the same goal for a tiny, tiny fraction of the energy costs. As well, what major differe

It's a cost/benefit ratio problem. Other crypto currencies can achieve the same goal for a tiny, tiny fraction of the energy costs. As well, what major difference would there be to the world if bitcoin vanished overnight? What real-world value is it providing to us? I don't see the costs of bitcoin being worth the benefits.