Science does not purport to discover the purpose of the universe, only the mechanism. So your criticism is misplaced.
Where in my post have I talked about purpose?
I simply made a statement that science, while glorifying homosexuality, has failed to touch upon the consequences of all men being homosexual which had it been true would have rendered extinct the human race thousands of years ago.
If science can talk about about the sun scorching the earth had it been a little closer to the earth or of the dire consequences of global warming then why has it failed to touch upon the issue of the extinction of the human race had every man been homosexual?
Well, even though science has ignored this crucial point for whatever reason perhaps political correctness could be the reason regarding the causal connection between extinction of species and homosexuality, I am bringing this radical consequence into view to remind people of the fruitlessness (in the procreative sense) of being born homosexual.
Does science deal with mechanism in a holistic universe constituted of mind-matter?
Science deals with the mechanism of observed effects which it mistakes as the complete causation.
Besides, science deals only with a narrow range of gross physical phenomena but makes sweeping generalizations and tall claims about the nature of reality which of course is way beyond its microscopic ken.
The limitations of science should be pointed out.
Science is not sacrosanct nor infallible nor holistic as many scientists themselves candidly admit these days.