I don’t understand why Death gets lumped in with Supernatural villains. He’s the essence of neutrality. He doesn’t side with heaven or hell. His purpose is to get souls where they belong so they don’t become vengeful spirits.
The only time he actively killed people was during the apocalypse and that’s because Lucifer had him bound. The other horsemen enjoyed wreaking havoc but Death had to be forced to do it. Isn’t that a clear indication that he’s not evil