Every time people lament changes to the lore that amount to "not every member of species X is irredeemably evil" and claim the game is removing villains from it, I think how villains of so-caleld evil species fall into two cathegories: a) bland and boring and b)have something else, unrelated to their species going on for them, that makes them interesting.
I have it to where the good/evil extraplanar creatures are created as expressions of the good and evil within everything sentient.
Yes, exactly - as I put it to my players, a "person" isn't able to be inherently good or evil. They'll have their own morals - particular things they always will or won't do - but alignment is for things literally made of the concept of that alignment.