I, for one, welcome our virgin-polyester clad overlords.
.... AS IF. My biggest problem with SHEIN is that it's acting as a low bar by which other clothing manufacturers judge themselves. Take - for example - lingerie. Expensive knicker emporium Anne Summers now churns out much the same sort of tat as SHEIN but because it has their logo stitched into it charges a small fortune. So the consumer thinks "well I might as well buy the cheaper product".