Some false premises in this thread
corporations are not required to maximize profits. Even if maximizing profit was mandatory, this is a pretty subjective topic
is short term profit while pissing off your customers "maximizing profit," or is sacrificing short term gains for long term customer loyalty "maximizing profit"? It's not a rhetorical question, and I think you can find examples of both.
Corporations are also not all pursuing endless growth; in addition to "growth stocks" there are "dividend stocks." Some companies aren't aggressively pursuing growth, but are making profit, and the stock reflects this. It feels almost antiquated in the "to the moon" era, but these companies do exist.
We live in a high CoL area, and in our experience the only financial line items from having a kid that matter are housing and childcare: we pay more on daycare than we did on rent before kid when we lived in a studio. Baby food is only used for a little while, and if you prefer, most of it is easy to make yourself.
And private daycare (or nanny) should be expensive, because caregivers should be making a living wage.
The only options I see to bring down costs are to exploit caregivers more than they already are (this is very wrong), to rely on grandparents for childcare, or to implement publicly funded daycare across the board.