If you were to start yearning for children, you would either (a) be able to resist the yearning, or (b) be unable to resist the yearning and choose to have kids. In case (a), resisting might be emotionally unpleasant, but I don’t think it’s worth being “terrified of”. In case (b), you might be misunderstanding your terminal goals, or else the approximation that all of the squishy stuff that comprises your brain can be modeled as a rational agent pursuing some set of terminal goals breaks down.
If you were to start yearning for children, you would either (a) be able to resist the yearning, or (b) be unable to resist the yearning and choose to have kids. In case (a), resisting might be emotionally unpleasant, but I don’t think it’s worth being “terrified of”. In case (b), you might be misunderstanding your terminal goals, or else the approximation that all of the squishy stuff that comprises your brain can be modeled as a rational agent pursuing some set of terminal goals breaks down.