> FWIW, In my area of the world I hear about non natives being bad but they often seem to grow very well, eg in the wild. So it seems to me that they are often well suited to the local environment. The concern then seems to me to be an implicit preference for what was already here over new comers. To me, seems a bit “anti immigrant” and I just can’t relate.

This seems like a plot of some South Park episode or Onion news article TBH.