The authorities I cited are more than sufficient to prove you wrong.

You made a categorical claim that “pro-life Christians” did not view abortion as a grave sin until “circa 1968”. It takes only a single counter-example to prove you wrong.

Now you’re claiming that a certain level of notoriety is required. That’s the same diversion you tried to put over on Douglas Farrow last July. It doesn’t carry any more logical force now that it did then.

Referring to tragic cases of consecrated Christian virgins who try to conceal the guilt of fornication, St Jerome wrote:

Some even ensure barrenness by the help of potions, murdering human beings before they are fully conceived. Others, when they find they are with child as a result of their sin, practice abortion with drugs, and so frequently bring about their own death, taking with them to the lower world the guilt of three crimes: suicide, adultery against Christ, and child-murder.

Source: Jerome, Ep. 22,13, trans. F.A. Wright, Loeb ed., p. 79, cited by Gerald Bonner, “Abortion and Early Christian Thought”, in Abortion and the Sanctity of Human Life, ed. J.H. Channer (1985), pp.108-109.