From an economic point of view. How would you provide Basic income for everyone while at the same time eliminating the "wage price spiral" effect of normal goo

From an economic point of view. How would you provide Basic income for everyone while at the same time eliminating the "wage price spiral" effect of normal goods such as milk and bread. I am not an economist but I would be curious. Another point would be who gets to decide what a basic income is. Why stop at basic income. One thing that always troubles me able minimal wage discussions is why start minimum wage as say $15 dollars an hour. Why not $100. I actually believe that if we eliminated the minimum wage altogether the wages for various jobs would be able to find a better equilibrium then setting a artificial minimum. The argument the employers would reduce wages to $0.50 and the like would not happen because everyone would quit.