Don't get so worked up because he's infantile and doesn't know how to deal with people who are not like him. I'm pretty sure he doesn't want you dead, he just makes it clear that he doesn't agree with you. So what, this is no reason to die for. Just ignore him and go live your life the way you want to. Don't give in to pressure from ignorant people!
You have no choice as to when you die, therefore, make the best of your time on earth and try to find the purpose of your life so you can fulfill it. This episode might be a hint from the universe that you are in the wrong job.