[nickff]

>"the economy doesn't better support having children"

What do you mean by "the economy"? It is not clear (to me) why employers should pay fertile people more than sterile ones, or those who dislike contraception more than those who use it. Incentivizing child-bearing as a means of increasing future sales is not a good investment, even if we assume that said company will be a going concern by the time the child becomes financially independent.

The solution to most of your issues seems to be increasing the number of opportunities available to people; this would provide them options, and additonal competition between employers would improve treatment of employees. We already see that in-demand employees are treated very well; the key is to make everyone more productive, and increase demand for labor services. How this can be achieved is, of course, a topic of great debate.