Actually, it absolutely matters because it has not been decided at law that you need two US Citizens as parents to be a Natural Born Citizen or two US NATURAL BORN citzens, etc...
Some of the legal arguments have centered on HIS UK citizenship aspect - and he might NEVER have had UK citizenship.
There are various steps up the ladder. If he isn’t even a US citizen you don’t have to get to the Natural Born part of it - which will be the most difficult part of it to decide since it is not set in stone - or rather - legal precedent.
To decide whether he is a US citizen you have to look at whether he was born a bastard IF born outside of the US.
Hell lady, you can be a natural born citizen even if your mother has no idea who your father was. The 14th Amendment makes that very clear. FYI, there are plenty of babies born these days with NO FATHER on the birth certificate at all.
I think his real father is unknown.
Or if not unknown, a black man of such major impact that this is the reason for the coverup.