But, why would they legalize and enforce Bitcoin usage if they continued using a fractional reserve system?
I wasn't thinking so much of a government legalizing and enforcing bitcoin, as opposed to being forced to adopt it because their own money has become worthless and all their citizens are already using it. When counties like Zimbabwe or Argentina experience hyperinflation, they start using the US dollar. When the US dollar starts experiencing hyperinflation, where do they turn instead?
Correct me if I'm wrong, but such system works only if there's demanding for new loans AND available reserve from the clients' deposits.
Kind of, but banks do not need deposits or a set amount of deposits before they hand out loans. Bank loans create new money out of thin air.
Amazon paid zero federal taxes so many years, or so that is what I have been told at least, which means there must be so much tax that is gone just because they do not pay federal taxes, not just amazon but god knows how many companies.
Not only did they pay $0 in federal taxes, but they actually took advantage of a number of tax incentives, credits, and deductions, which ended up with them receiving over $100 million in refunds from the government in more than one year.