There are few visible effects of abortions, save for the occasional ghastly discovery of remains. Being pro-life may be unpopular in some quarters, but it is not the plague that opposing the gay agenda has come to be, especially in the universities of this country. One can be demonstrably pro-life with respectability. Not so with the debate about same-sex marriage. Its opponents are homophobes, so it is said.
People say that choice is the governing principle of the abortion decision.
So, being pro-choice supposedly means being in favor of women deciding for themselves what to do about pregnancy. But nobody really believes it. Almost no one thinks that, if unborn babies really are babies and not embryos or fetuses that women have a right to choose to kill them. Pro-choice really means unborn babies are not babies, they are fetuses or something else not quite a person. Choice is , however, very widely held to be the successor to marriage as the principle of morally permissible sexual activity.