I find a lot of DeFi projects to be very useful, but you have a logical fallacy -
If I buy 1% of Apple stock at $100, and later it's worth $1000 based on the last trading price, money didn't change hands to make me have more USD, it's my paper wealth.
If Bitcoin goes from $1 to $50k, and I never sell, I didn't take any money - the wealth simply grew.