Bitcoin isn't money at all, it's a currency.  Fungibility is one of the requirements of money.  Money can't just randomly morph from one thing to another with forks or alterations.

Money = has objective, static traits

Currency = random arbitrary bullshit some guy makes up and constantly fiddles with aka bitcoin

This is why it's called "cryptocurrency".  Currencies are not a store of value either.  People just make believe bitcoin is whenever they get on the profitable side of a pump and dump.