Ok, my two cents.
First off, let us summarize what the two fringes of the debate are saying, with the left "fringe" now being mainstreamed.
Leftards: Hurr, durr, abortion is a human right, even if the fetus can be viable out of the womb.
Rightwingers: Abortion is always evil,even if there are deformities, incest, and danger to mother and child.
The rightwing opinion is, of course, universally despised while the far left one is lionized, in no small part because it fits well with the Western liberal no consequences libertine culture while making the neoliberals happy because that keeps social spending for things like child care and maternity leaves down and keeps the feminine wage slaves working.
There are problems with both points of view, and frankly I am right of center on the issue.
Abortions in case of danger to the mother's life or if the fetus is non-viable or afflicted with some debilitating disease like down syndrome should IMHO be permitted.
Incest is disgusting, dangerous from a purely genetic standpoint, and making a woman carry a product of that, especially if it is related to rape, is pretty vile in my book.
So, those are the situations when I am fine with abortion and the benefits to society and the individuals involved are obvious in those cases.
In general though, we should have restrictions up to a particular stage of pregnancy, like with the heartbeat thing, however I think that brain activity should be the deciding factor.
Now, on to the social negatives that abortion brings:
First off, it decreases the population over time, which erodes the tax base.On a purely personal level, all those spinsters and chads that pumped and dumped them will probably die alone, in a nursing home if they are lucky, probably impoverished and without anyone giving a damn about them.With economic growth and social cohesion being impacted.
Another problem is that on demand abortion helps proliferate this no consequence culture and stimulates dangerous, promiscuous behavior subsidized by the taxpayer.I see no reason why I should subsidize the stupidity of instathots and sex and the city larpers that are too cheap and dumb to make their latest one night pumper put on a condom, especially since abortions and hormonal contraceptives and morning after pills do not prevent the spread of AIDS and other venereal diseases.