How about we try not to do that sort of thing?
If we sent all the babies once born out into traffic to play in the middle of the main highway, it’s not a given that any specific baby would be harmed, either.
And perhaps the person who makes this argument’s life would be helped by forcing that person to donate a kidney; or to do hard labor in bad weather at a risky job which they hate, are terrible at, and may well lose their health or life trying to do anyway; or to leave wherever they live and do volunteer work somewhere on the far side of the planet where they have no resistance to any of the prevalent diseases and won’t be given medical treatment if they contract them. Maybe sixty years from now some percentage of people who you did that to would say they were grateful for it; I wouldn’t be surprised; they’re all things that some people do willingly and consider their lives improved by. But I’d be very surprised if the people who are so sure a woman’s life will be improved by a forced pregnancy would be happy to have any of the above be forced upon them.
You really do seem to me to be flailing around trying to find some argument, any argument, that will work to turn pro-choice people into people opposed to any abortion whatsoever except in cases where otherwise mother and zygote/blastula/embryo/fetus will die together. And when your arguments don’t work, you just come up with more of them; but your arguments are getting worse, not better, though even the ones you started with seemed to me to have some big holes in them.
Somewhat sideways: no, we have laws against trespassing because we expect people to be able to be reasonably in control of, and not to be invaded in, their private quarters. I think that analogy works a whole lot better in the other direction.
Pregnancy is sui generis, you’re right about that one. But no, not every one of us was a squatter. Quite a lot of us were actually invited.
Two things: one, in current law in some USA states you can shoot the person out of hand.
Two: How long does a blizzard last? a day or two, maybe three or four at the outside? Even if there is a law saying you can’t put a trespasser out in a blizzard, do you know of any law which requires people to house, in their most private quarters, that trespasser for nine months? Oh, and add to that adjusting their normal lives in major ways, potentially seriously affecting their future as well as current capabilities, and risking their health and lives in order to do so?
If you get in a car and drive to the store – or for that matter if you walk to the store – you know that there’s a chance somebody will run a red light (or maybe just skid on ice or oil), crash into you, and land you in the hospital for months and a wheelchair for life. Does that mean that when you left the house you consented to having that happen?
A person consenting to sex isn’t even consenting to additional sex acts, whether of a type they don’t want or at a time when they don’t want them, let alone with a person they didn’t agree to have them with. They are most certainly not consenting to surrender the rest of their lives.
And I notice that people making this sort of argument always talk about ‘consequence free recreational sex’ as if the only reason other than pregnancy that people have sex is because they think it’s fun for five minutes, or even five hours, and expecting them to give it up were no more of a big deal than expecting them to give up, say, eating potato chips. Sex in humans serves many purposes. Probably the most major one in most people’s lives is as a binding mechanism within relationships. Remove that binding factor, and the relationships are likely to be seriously damaged, and/or made more vulnerable to damage from other forces which they might otherwise have withstood.
(Yes, I know many people have sex with people they don’t give a damn about at some point in their lives, and I’ll defend the right to do that also as long as that’s what they’re both/all into and nobody’s lying. But most people want, at least at some stages of their lives, to have sex in lasting relationships. And I know that some celibate relationships last. But talking about sex as if it were never actual making of love is still nonsense.)