I used to think that morality was based off empathy. “Do unto others as you would like done unto yourself”. Meaning every action taken would have to be one that you would also like done to you.
But what about, say, putting someone in prison, or killing someone in self defense? What about going to war with a country e.g. Nazi Germany that was taking over a continent and killing millions of people in concentration camps.
How could you kill or lockup and arrest Hitler or Osama or any person using empathy as a justification when you yourself would NOT like to be locked up or killed?
I’m a total philosophical illiterate and if these questions have been dealt with by any big names in the past then I’d like you to recommend some reading material, because I’m really confused! Thanks.