It's interesting, so many cultures have demons or evil spirits. And sometimes those evil spirits can be turned to good, but not usually.

I think DND mirroring culture in this way is still mostly OK, whereas culture has thankfully mostly moved on from races being good or evil.

For demons and devils, that usually goes straight into supernatural, as they're not really a race, but physical manifestations of evil energies.

But... what about demons/devils?

That's actually why orcs in D&D were an evil race in the first place. At its core, D&D is derived from Lord of the Rings. Orcs in Tolkien's world were created from elves by an evil god/demigod to be his evil army. They had no choice to be good or evil in LotR so that property was inherited into D&D.

I'm okay with this change. Orcs in D&D lore have a different origin than in LotR and I don't see why they should always be evil. I consider this just one more reasonable change from the original game which had odd rules like dwarves can't be wizards and only humans could be clerics.

Just because they're evil doesn't mean they're always doing something bad.