That's a terrible analogy. Orange supply could be infinite should we maximize orange production, this is not how Bitcoin works.
If there were only 12 oranges produced on all the trees in the world every hour & it cost $500 an hour to operate your orange farm. You therefore have to sell your oranges for at least $42 to cover costs and make a small income
However now there are only 6 oranges produced every hour (not 12), what can you do to maintain profitability?