Ask yourself what money (gold, paper or electronic) actually is. It is itself worthless and meaningless. You cant eat it, use it for shelter, or kill anyone with it.

What it does it allow you the ability to influence people, and that's only as long as the people you're influencing also value it too.

As long as people value electronic currency then it's just as valuable as gold.

The next question would be, what would stop people placing value in any currency? To answer that, you have to understand why they value it in the first place.

USD is based on 2 things:
- The promise of delivering the boot to any ass that messes with uncle Sam.
- Supply (as in, they keep printing more and more, what's left is worth less).

They're ruining the second condition with their mad printing of money, however condition 1 still remains as strong as ever.

Money is only as valuable as the influence it exerts. Either through incentive or coercion, direct or indirect