So here's my question. What if you hypothetically, PERSONALLY, felt the fetus had the moral "weight" of any other human life by that second trimester. Do you believe you would as easily think that it is not your place to push for action to protect what you assign such "weight to"? Not even saying WOULD you think that, but would it be a bit harder to make that decision.
You're not really that different than a pro-lifer, despite the way your guilty consious squirms and dances to where you have to complain about explaining yourself "Ad naseum" when in rality you talked in vagueries repeatedly until you finally gave a smattering of truth in your post that the reason you assign it some mortal weight is because it is related in some way to a human life. The only difference between You and a Pro-lifer is not simply the belief of whether or not ones beliefs should be imposed on others...the difference is in how much moral worth you place on the fetus's life. You place enough to where on a personal level, for your own soul or mind or heart or consious, you would suggest people shouldn't do it but you don't put enough on it to where you can't justify suggesting that the state has an necessary interest to act. The only real difference is that pro-lifer's put enough moral weight on it to consider it worthy of protection, they put moral weight on it similar to that as a child, and as such refusing to compell the state to take action in such a case would be tantamount to refusing to compell the state to take action from a mother killing her infant, because in both cases the person sincerely believes morally in their hearts that the fetus has the same moral weight as any other child.
Now you can disagree with them, you can argue with them, you can find their arguments hollow. But to be frank, it's ridiculous and to me hypocritical when you insult and belittle them for their views because they are not much different in you in thinking and are seeking to act no less morally than you. They simply place a different subjective worth on the child than you do...and yours is no more correct or legitimate in the grand scheme of things then theirs.