The 1790 act did not give a description of what a Natural Born Citizen was. It simply said that those born in Foreign countries to an American Father would be "considered as natural born citizens. "
It means Adopted Children would be treated as if they were blood offspring. It doesn't mean that they were.
OK, that's it, I see where you are at. I won't be responding to you anymore. It's like trying to talk to a liberal.