The problem is that
D&D doesn't truly know what D&D alignments are. Alignment has changed from edition to edition, and has been the subject of considerable debate every time. It
barely works in a universe where good, evil, law, and chaos are
objectively measurable things; when you try to bring it into the real world it collapses under a lack of any real agreed-upon definitions of what it means to be "good", or "evil", or "lawful", or "chaotic". —
Oblivious Sage 1 min ago