There's a company in Colorado that seems to have developed something that can revolutionize our power grid. They can effectively turn the otherwise unused real estate that is our roadways to turn it into a giant diversified solar power grid. It would also function as an innovative smart road
The reason your discussion gets as far as it does is because you outright rejected the possibility of a fetus being a person. If you are honorable enough to admit that we don't know when someone becomes a person, then you are immediately thrust into a known medical dilemma of useful medicine being drawn from immoral acts.
It is further complicated that if we consider this possibility we are not even given an option of leveraging knowledge at the expense of evil people. If a fetus is a person, they are, by definition, innocent.
Hence, the question.
If you want to be taken seriously on commenting on the hypothetical of how killing of innocents should be justified, I'm all ears. Until then, you're like everyone else in avoiding what is a very real issue for the sake of pride.