My big question is why didn’t we just say the speed of light is exactly 300,000 meters per seconds when we redefined the foot.
Might as well use Planck units then.
Because then the distance between earth's pole and equator would no longer be 10,000 km.
Speed of light in what?
I presume you mean in a vacuum. You could have only gotten that particular answer if you had redefined the meter as well in a fairly substantial way and I suspect a lot of people would have been upset if you attempted that.