so again what is the point of having a limited supply that can be bought by a unlimited supply
The point is that unlimited supply (fiat) can buy everything and is centralized so its value is stable and declared by the government.
While bitcoin (limited supply) isn't controlled by the gov't which has its own value predicted by its supply and demand through us . I don't know if this answer will satisfy you.
I thought it was to stop things like banker bailouts as mentioned in the genesis block
So this is your point?