Because with a million dollars, either cash or digital, I get the ability to recive capital at the dollar withdrawal from the market, which is at loans repayments/liquidations
You're gravely mistaken if you think that this is an exclusive feature of the dollar. It can happen to every currency. You still don't answer to my question, though. You said that you can multiply your dollars, but this doesn't answer on why you would trade your car with some pieces of paper.
I am not trading it with some pieces of paper but with security that give me the right to recive capital that the security issuers borrowed at security puting on the market. The higher a number on paper the more capital, that is utility value, will I receive at security withdrawal from the market. You must educate yourself how securities work to be able to understand what I am talking about. But here that's not the point given bitcoin is not a security. Bitcoin is literally a number. And I am asking why would I pay an enormous amount of money for it?