The problem seems exacerbated in the US, because of the association of culture with genes and sub categories of citizens based on these crystallized association. It would be far less problematic if US society viewed and recognized only one big group of American citizens with a shared culture, with their specific history and genes being individual and private matter, like in some other countries (not to say it’s all rosy there, but at least there is that). These research could still be extrapolated but only to arbitrary group of individuals with no official existence, instead of well defined “races” like in the US. Of course it’s just an outsider reflection, I may get things wrong here.