This looks like a straw man to me. In stead of labelling an amorphous 'brigade', you could refer to anyone who might concievably make such a statement as the tiny, ignorant minority that they are. A minority of one, would be my best guess and I would struggle to believe that without a cited source. On the other hand, those like me to whom you attach the label 'trendy-lefty wokist', have always admired ethnic art from all cultures and see nothing worng with copying it in fashion garments and other artifacts.