The reactions reflect a failure on the part of some gamers to recognize that whiteness is a race at all. These players appear to think of whiteness as a neutral type of embodiment, the universal category of humanity against which all those who do “have” a race (anyone who is not white) are compared.
For all the supposed progressiveness of today’s youth, I guess I am somewhat perturbed that they wholeheartedly still cling to the idea of “race”, and very old ideas too (e.g., that “race” == skin color.)