I'm proposing an idea of interconnectedness? What makes you think that? I didn't intend to...
So, your argument is that a fetus is a person from the point of conception. It's a separate person from the body it inhabits. As you pointed out, they do not share a single body, they are two separate bodies with separate DNA and, in your eyes, this makes them separate people. Thus, your argument is that the fetus should recieve the same individual rights and protections as a person, rather than being treated purely as a medical issue for the mother.
But assuming that is true, then a fetus is a person living inside the body of another person from whom they are entirely distinct yet entirely dependent. The fetus cannot live outside the body it inhabits, and yet it also has no inherent right to be there. As a wholly distinct entity from its mother, it has no legal right or ownership towards its mothers body. Removing it is no different from evicting a squatter from your property, unless we see the personhood of these two people as interconnected.
And that's what I find interesting, because I think once you start believing that people are interconnected and have obligations towards each other simply because there is dependence, then that has some pretty serious ramifications for society. It's potentially a very radical idea.. a very
comradical idea if you catch my drift.
I mean, the alternative is that you see fetuses as people but don't quite see women as people, but I don't want to assume that so I'll assume the more charitable one.