Again you're mixing up short term cash and long term store of value.
Cash you want stability, fast and low cost transactions - you pay for all those benefits with inflation.
A good long term store of value you will sacrifice a little of all those things for better inflation resistance.
Gold and index funds are also good for long term value storage, but index funds you can't really use as a medium for exchange, and gold is physical so not great for easy and quick transactions.
You have ignored the central part of this: volatility. Bitcoin is not a good store of value. I don't have time for people who argue so misleadingly, so I'm done here.
Cool, well the price of Bitcoin disagrees with you. Maybe you should think why after 10 years of the same tired arguments, Bitcoin is still going strong. How many years of success will it take for you to change your mind? Serious question.
Cash you want stability, fast and low cost transactions - you pay for all those benefits with inflation.
A good long term store of value you will sacrifice a little of all those things for better inflation resistance.
Gold and index funds are also good for long term value storage, but index funds you can't really use as a medium for exchange, and gold is physical so not great for easy and quick transactions.