Any physical object or piece of real estate (which is, strictly speaking, a physical object) is technically "property". Trash is property. Mud is property. It's just that sometimes it doesn't belong to someone per se. For example, you can't say "that's my corpse!" and point to a dead person, show that you legally purchased it, etc. Well, it may be possible for Ancient Egyptian mummies. How does Scottish law treat the ownership of ancient mummies?

John Moore, suffering from hairy cell leukaemia, had his spleen removed. Dr Golde discovered that cells from his spleen contained potentially beneficial properties. He developed a cell line from the spleen which he eventually sold for $15 million. The products produced as a result were said to be worth several billion dollars. His research on the spleen was carried out without Moore's consent or knowledge. Moore brought an action based on conversion, breach of fiduciary duty and informed consent. The Californian Supreme Court rejected the conversion claim declaring that there was no precedent on which to base a claim that people had property rights in their bodies and that it would be inappropriate for the law now to recognise one. To recognise one would cause difficulties: it would hinder medical research by restricting access to raw materials and lead to a ‘litigation lottery’. The prospect of patients ‘shopping around’ to find who would offer them the best price for their bodily parts or products was not an attractive one.

On that "wrongful life" point, I can guarantee you it would fail in a US court. If I remember correctly, something like two thirds of Americans would limit abortions in some way or another.