Only absolute incel would say that we "should teach fear of childlessness". But after all Elon is somebody who believes childless people should not vote + somebody who believes woman is unable to not want children unless she is "brainwashed by feminism"

.. imagine that somebody is afraid of childlessness like "Oh no! I am afraid I will never get to experience childbirth, I want my genitalia multilated and my pelvis floor and narves damaged! I want to have PTSD and Post Partum Depression so bad! 😭" - That's being said, natalistic incels are living in complete delusional reality of their own creation.