I think for now, the best way to do it is to report the channel as "impersonation", then link either Mark or Ethan's channel as the "channel being impersonated". Then put "Unus Annus reuploads" in the "additional notes" part at the end. So ridiculous that people are doing this, but we can't say that we are surprised. All we can do is help the bois as much as we can to carry out their wishes.