Congress decides who becomes a citizen and how. To automatically say the 14th Amendment grants birthright citizenship, no, we can't change that. Amending the Constitution, not possible, takes too long. We gotta find another way of dealing with this. No, we don't, because it's not there. You don't have to amend the Constitution.
I do not believe that science per se is an adequate source of happiness, nor do I think that my own scientific outlook has contributed very greatly to my own happiness, which I attribute to defecating twice a day with unfailing regularity.