Exposing crypto currencies as ponzi schemes and showing that they never had nor ever will have anything to do with money is an incredibly easy task to do. All one needs to do is to look at one simple concept -the concept of number. A number is defined as a mathematical object used to count, measure, or label things. Now, given this concept let us ask one simple question: What 'thing', is measured, counted, or labeled, with the number called bitcoin?
.... the rest you can watch in this short Youtube video:
https://youtu.be/gcNngl8fCUYEducate yourself first about cryptocurrency so that you will have a wider understanding about it. This forum is a good place for you to learn. Don't just focus on one source and then convince yourself that it is a bad thing.