they are peter-thiel-style libertarians and “race realists”, among the most extreme of the far right you can get. that very term “grey tribe” comes from an essay by scott alexander who consistently goes to bat for racist and fascist causes. there’s nothing remotely left about them.
Division of labour is not capitalism, trying to do everything by yourself is not anti capitalist (and in fact that extreme individualist fantasy has more to do with capitalism than anything else)