You can hold full value of your bitcoin in your hand, away from any exchange. To call bitcoin a ponzi is false 100% no matter how you look at it. Your attack on crypto is nothing new, and totally fine, but when you reach so low to call it ponzi really devalues any opinion of yours.
Now you show graphs, speak about Chinese money involvement, sure that is fair game
fight it this way please, fair.
Bitcoinity is good, another one here
https://coinmarketcap.com/currencies/bitcoin/#markets
of the exchanges listing BTC by volume, quite a lot of money coming from all over the world, esp USA, China