It is absolutely true that everything around us can be called a Pyramid or a Ponzi scheme. Pension system, banking system, currency system of Fiat money, credit and Deposit in the Bank. Generally any system where there is money, can be considered scheme fraud. The only question is legitimate is fraud or not.
Your point of view seems to be something which is very unusual but I do understand you well. yes, everything around us can be called a Ponzi scheme, and the crypto as well but I believe in it.