There's something that has always nagged at me in these discussions, and I've always been somewhat afraid to bring it up lest I misconstrue, but I want to try and figure this out.
What's a state of affairs we can reach such that people don't become preemptively discriminatory for lack of being able to examine factors that would impact workplace performance? We agree, societally, that we shouldn't discriminate against parents. However, we don't live in a world where a business is spared the cost incurred by that. That's just not the pragmatic reality of employment in the US at this time, and my fear is that if unable to ask "do you have a good track record or gameplan for keeping up with the unique obligations of childbearing" we'll err on the side of paranoia in hiring, and the discrimination will occur in seeking to AVOID potential conflict or discrimination.
A govt stipend was one way I could see this, in that the business doesn't have to bear the cost and can offload work. I'd still be concerned that a business might be afraid about context switching/onboarding, but it's a step forward. Unfortunately, I don't even see that becoming a reality in a country where paternity leave is still the exception and not the rule.
There almost seems to be a "psychological game theory" question lodged in there, apologies if I was rambly in stating it.