Wrong. The fetus would only have to be declared a “person” to be guaranteed the right to life. They don’t need to be made citizens. Even illegal aliens have the right to live. Some people just don’t want American babies to have as many rights as illegal aliens
If you are referring to the judiciary declaring a fetus as protected or not, then yes, but that’s exactly what we already have. Congress can and should decide the law of the land, they just don’t want to. In the absence of that, the states’ legislatures could constitutionally do what the feds won’t, but I maintain that the responsibility for this, where it should reside, is with the national lawmakers.