I honestly saw the Evil "immediately attack" option as a way to be a murder hobo, if one so desires. There have been instances of more analytical or pragmatic yet harsh approaches that are also considered "evil", though, so I think overall there's a fairly good blend in terms of player dialogue options.
"Murder them all" you can do all the same in BG3, and also for the most part in BG1 and 2 (with notable exceptions of immortal npcs). This is why I call it lazy writing, because it requires no thought or effort on the writers part. It is only a matter which npcs the programmers let you kill. The issue is that this is the only option that comes often for now. My character is neutral aligned and I wanted to play a slow corruption before taking the mythic path. I am not interested in playing "suddenly starts killing random folk". I guess she will stay neutral instead.
Play Lawful! Most of that seems to revolve around PUNISHMENT FOR ALL... lol.
