It is no coincidence that the anti-PD faction uses the word human so much. Yet the implications of intra- = interspecies ethics are total war. You'd be ethically obliged (ethics never are a matter of choice) to free every species subjugated by the Klingons or Romulans.
So Rachel Garrett was wrong to help the Klingons because her actions could cause a war with the Romulans? A simple 'yes' or 'no' will suffice or you can try to backtrack on your previous comment...