Biology isn't going to change.
No, but out understanding of it is... which is why we know gender isn't completely binary.
Men will never be women, and women will never be men, and the side that tries to deny the distinction between the two will never win by so doing. It's a fad that will pass. There will never be more than a tiny, freakish, mentally-defective minority who sincerely deny the biological difference between men and women.
Actually, the funny thing... The problem with hate is that at the end of the day, it isn't rational. This is why racism and homophobia are already looked down upon...
That some people are trans.... has no real effect on your life.... but you have this irrational hate anyway.
Even so, it still takes a woman to supply the egg,and a man to supply the sperm. For alt he technology that we now have, and that we can rationally foresee ever having, to apply to the reproductive process, that has not changed, not is there any reason to suppose that it ever will. Men make sperm cells, women make eggs, and it takes one of each to produce a new human being.
Except now we can clone animals without a sperm.... Genetic engineering... all sorts of science on the horizon.
Now, not saying everyone will go for that... it actually does take some of the fun out of it.
But I can see a culture in the future where all children are genetically selected before birth, to be free of disease or defect.
Maybe we can even isolate the "Religious Bigot" gene and eliminate it.
I do love living in you head, Bob. The Mormon Brainwashing keeps it nice and clean...