His idea of "if nobody is going to fund my future idea, then the world doesn't deserve it," is still actually... factual. Exactly. Don't fund that idea. DO NOT bootstrap that idea. Do not do that idea. If that idea really does require millions of dollars, do something similar and more basic to start. Don't do a half-assed job if you really calculated it would take you millions just to get launched. Remember, the world doesn't deserve it, and you can't build your idea. So build a smaller version. Simple. And you only have to get a few customers to be in the black, instead of millions. You just won't be on the news.
Oh, and it gives you something to do--scaling it up and adding new features--after your initial launch. While, if you spend all these years and all this VC money before you can launch, and nobody cares about your product when it's launched, you're probably going to abandon ship. So, if you need VC money just to launch, you're nuts.