Phrase: ".This lack is real because it relates..."

"This lack is real because it relates to something real, namely, that the living being, by being subject to sex, has fallen under the blow of individual death" (205).

It seems to me as though many of the early theorists have a major issue with the idea of sex or sexual reproduction. I am probably totally off base, but I feel like this phrase could almost tie in with the issue of the "reproduction" or the copy of a copy. One loses part of himself by reproducing, and even such the reproduction is still secondary. Man feels superior to the copy, thinking the copy will never be at its level. Yet, reproduction is essential to keep exsistence going.