Trump's parents don't have to have been natural born. Trump is natural born by your own description. Obama and Harris are not. So yes we should push this matter if necessary. Regardless of the ultimate court ruling regarding a challenge to Harris eligibility, there's a strong likelihood that an injunction could be granted while the court figures it out, in which case the SOTH would likely serve in the role of acting president and given the time required for the trial and any appeals, it's not unreasonable to assume the SOTH would act until a new president is sworn in in 2025