essentially low IQ people ( like the average poaster on GAB etc. ) can only understand appearances - their mind is too obtuse to penetrate to the substance.
these people talk of genetic heritage but don't believe in evolution. they believe in Creation.
they just want their own children to look like them because it's all they can understand - how things look - not how they work. they are literally dumb animals.
they say things like "you flushed your genetic heritage down the drain" ( by having 20 children who have different eye color from yours, each of whom has 5 kids of their own ). on other hand they believe they "preserved their genetic heritage" if they had one child with the same eye color as them, even if that child is a suicidal drug addict and kills themselves without ever reproducing.
every time you reproduce you make a copy of your genetic code. you make exactly one copy regardless of whether you reproduce with somebody who looks like you or doesn't. your genetic heritage is either passed on or not passed on depending on whether you have a child or don't have a child. the race of the person you're mating with DOES NOT AFFECT THIS OUTCOME.
and if your IQ is too low to understand this then frankly your DNA is not worth passing on.