I'm sure you're right about many scientists, mathematicians, and engineers being in this antisocial camp too.
And what you say also about love's subjective power seems to me consistent with the intellectual argument. Take the saint or ascetic who condescends to lovers or who emphasizes the primitive origins of love (the love hormones, our evolutionary descent from primates, love's biological function, and so on). Why couldn't the intellectual concede that love feels profound when you're in the midst of it? The subjective aspect is consistent with the objective one.
What would threaten the intellectual argument, I think, is if the pitfall of love didn't sidetrack us from the presumed intellectual pitfall into transhuman godhood. The question is whether intellectuals need to fall in love not just to be "human" in some sentimental sense, but to progress in the best way.