Vague Wisdom

I think a lot of the people who are uncomfortable with abortion to save the mother's life would also be uncomfortable with the idea of kicking someone out of the lifeboat when they're then sure to drown. Especially presuming that they *didn't* "jump in" -- at best, they washed into it unconsciously, or maybe you even invited them in. At that point, the lifeboat may in some sense belong to you -- but the fact that you own a functioning lifeboat and they don't is just a product of luck, and meanwhile, you're both equally dependent on this one. Under those circumstances, it's by no means clear that ownership carries particular moral weight.