Earlier quoted context omitted.
You are, obviously, completely correct on the point that you raise. However, I am sold on those sort of laws on the basis that employers are discriminating on irrelevant dimensions, like race and gender. An employee expecting, or indeed planning , to take a X months leave Y months after joining, with X > Y, isn't an irrelevant dimension. Especially if parental leave is paid, but I don't know if that is how the US han…
While we're at it, why shouldn't any prospective employee with a health condition that might require extensive time off be required to disclose that? And, since people aren't often the best judge of their health conditions and the impositions they'll make on future employers, perhaps it'd be better if we all just disclosed our complete medical records along with our job applications.
Fortunately this is exactly how it's implemented in most European countries: if the employee is not working the employer doesn't pay. The (usually state run) insurer does.
Requiring businesses to pay for someone taking time to care of their children is patently stupid and unjust and there is fully justified pushback against such laws.