You're correct because dollar is a debt unit - an instrument of debtors liability created at a bank via loan contract. That's why you cannot create dollars here on the forum. However, bitcoin is just a dozen of binary digits. And those can be created everywhere by anyone. I did it here. You did it here. Nakamoto system does it. Thousands of crypto system as well. It's just that people give different names to those digits. Simply, whoever needs them digits can create them at an instant. So, why are you people spending tons of energy or money to get them?