BookTenTiger
He / Him
I would argue you can still have black and white morality without an evil alignment!Given that there are plenty of other RPGs out there without G vs. E like we find in D&D so I have to agree with you here. However, I need good and evil in my D&D games and if it's removed from the game in its entirety I'll go play something else. For me, D&D is a game of high fantasy where good and evil are palpable forces. I don't play D&D for shades of grey where morally ambiguous anti-heroes wreak havoc across the land for the highest bidder. I play D&D because it's a game where good fights and triumphs over evil. Though most modules are written with the assumption that the PCs are good guys, I wonder if my love of good versus evil in D&D is in the minority now.
All it takes is a defined morality for the culture that is being threatened. If you start the heroes in a culture where necromancy is outlawed or reviled, then any necromancer they come upon can be considered evil without the existence of an evil alignment.
If raiding, murdering, and slavery are considered bad, then any raiders, murderers, and slavers can be fought without a second thought!
And you don't need alignment to guide you in that at all.