Guess what when eternally separated now, that doesn't change. What has to change is 99% of the population won't accept life as it physically exists biologically separated now.
Power of suggesting biology doesn't maintain eternal separation setup the scenario of a 18 year old walking into a school killing 21 people because his reality wasn't what humanity promised.
Stop pretending real isn't actual biology eternally separating reproductions evolving here now. Mathew and his wife won't accept it.