Of course race exsits, it is not a ‘social construct’ at all. Which is why you can determine someones race from DNA. Race is correlated with lots of things, size, athleticism, intelligence, hereditary disease, propensity to violence.
As for “Darwinism” - well according to most scientists the races seperated at least 100,000 years ago, which is 1/2 a million generations of genetic drift. It has nothing to do with gorillas. Look at the difference between a rottweiler and a poodle.
Same species, but you can’t claim that there is no inherent difference between those two breeds. And that is far fewer generations than human races.
Saying things like “race is merely a social construct” is just more liberal non-sense. It’s just another ridiculous meme that they trot out when it suits them, but don’t really believe themselves. (Else why the endless programs for some races and not others?)
Assumption -> examine evidence through that assumption -> “prove” the original assumption