Read the bitcoin thread - I explained it so perfectly many times. What do you want to know?
What you should (and presumably do know) is that Govt issued money can, and will be printed to infinity, thus diluting its value to infinity. Only a fool would work for, let alone try to store value, in a currency that can be infinitely printed. Let alone stored with a 3rd party being a bank, so that even that money you think is yours, is actually not - rather you have an IOU from a bank, for an infinitely declining currency. Bitcoin is your defence against that (if you understand the core properties of bitcoin).
Here is my take:
This argument confuses the ability to create money with the inevitability of destroying its value. The fact that a government can issue additional currency does not mean it will do so without limits or consequences. Money creation is influenced by monetary policy, economic conditions, productivity, demand, and institutional constraints. Inflation is a real risk, but it is not an inevitable consequence of having a currency whose supply can expand. The historical record demonstrates that fiat currencies can retain purchasing power over long periods when supported by credible monetary institutions and responsible policy.
More importantly, you are treating scarcity as though it automatically creates value. It doesn't. Something can have a mathematically fixed supply and still lose substantial value if demand declines. Bitcoin's 21-million-coin limit establishes scarcity, but scarcity alone does not establish intrinsic value, purchasing power, price stability, or universal acceptance. Those depend on demand, utility, confidence, and the willingness of others to exchange goods and services for it.
Your argument about banks is also misleading. A bank deposit is a liability of a regulated financial institution, but that does not mean the money is somehow not yours. Depositors have legally enforceable claims, access to payment systems, and, within applicable limits, FDIC insurance. There are legitimate counterparty risks, but they are not equivalent to having no ownership or control over your money.
Finally, Bitcoin does not eliminate financial risk; it changes its nature. Instead of inflation and monetary policy risk, you take on substantial price volatility, custody and security risks, regulatory uncertainty, and the possibility that future demand will decline. A currency that cannot be expanded may protect against one particular monetary risk, but that doesn't automatically make it a reliable medium of exchange or store of value.
The fundamental question isn't whether money can be printed. It's whether a monetary system can reliably preserve purchasing power, facilitate economic activity, and maintain public confidence. Bitcoin offers an interesting alternative with some genuinely distinctive properties, but declaring fiat currency worthless and Bitcoin its inevitable replacement is an ideological conclusion, not an economic argument.