You don't need to fork it, or mine it. You just use a smaller amount.
My point was that other traditional "store of values" have inherent value based on their utility per amount, which means that the finite supply has implications for people who want to use it. Bitcoin doesn't have that - it's purely useful in terms of what you can trade it for (much like a dollar.) Hence the fact that there's only so many "units" is kind of uninteresting, because a fractional unit is no less useful.
My point was that other traditional "store of values" have inherent value based on their utility per amount, which means that the finite supply has implications for people who want to use it. Bitcoin doesn't have that - it's purely useful in terms of what you can trade it for (much like a dollar.) Hence the fact that there's only so many "units" is kind of uninteresting, because a fractional unit is no less useful.