When a parent leaves the work force to focus on parenting, this shows up in government stats as lower employment and less consumer spending — suggesting a less productive economy. But that's not what's going on at all.
The resurgent claim that the modern economy was built on slavery is yet another attempt to attack capitalism while also claiming "we are all to blame" for slavery. The slave owners of old tried a very similar tactic.
Entrepreneurial action provides the fuel for the constant mining of consumer value. If entrepreneurs cease acting in this way, consumers will cease to see innovation and growing value in the marketplace.