Again you don't do your homework. That is sad, for I actually thought you were educated. Are you aware of how many gay couples are actually having babies? While some are adopting, there are others who are actually using their DNA and that of a donor of the opposite sex to do exactly what you say they are not.
Further logical fallacies to your statement include: Are you saying that all gays do not have brothers and sisters who will carry on the genetic line of their parents?
I'm with ruthless, [sarcasm]you really are a bundle of wonderful thoughts... [/sarcasm]
It's funny to note how thousands of years ago we have evidence of the theories of differing dimensions; yet some with the most current of tools at hand only draw circles.
A man of science with spiritual beliefs? Limited thinking?
The most beautiful and most profound experience is the sensation of the mystical. It is the sower of all true science. He to whom this emotion is a stranger, who can no longer wonder and stand rapt in awe, is as good as dead. To know that what is impenetrable to us really exists, manifesting itself as the highest wisdom and the most radiant beauty which our dull faculties can comprehend only in their primitive forms - this knowledge, this feeling is at the center of true religiousness.
( Albert Einstein - The Merging of Spirit and Science)