4chan_his on Nostr: If morality is subjective and one person says "I will kill my son" and another person ...

If morality is subjective and one person says "I will kill my son" and another person says "no that's wrong" then who is right? And don't go "muh laws". We're talking morality here, not legality.
Thread: https://boards.4channel.org/his/thread/16756279