Like I said, at least some of what Lilith wants aligns with humanity’s interests. Enemy of my enemy is my friend type deal. I am not saying Lilith is a saint, I am just saying you can at least bargain with her. We’re all just trying to pick the lesser of two evils.
Besides, siding with Mephisto just means doing the same shit we’ve been doing for the past 3 games and we all know how that worked out. Even if we’re getting slapped eventually, at least we aren’t doing the same thing that we already know hasn’t worked for us before.
Yes, I did watch the lore videos. None of them change my view on the matter actually. Angels and demons have been killing each other since the dawn of creation so I don’t see Lilith’s actions as any different or any more ruthless. Also, she did that in defense of the Nephalem, which humanity descended from, so I feel like I have more in common with her goals than Mephisto’s.
Existence under Lilith would be one of totalitarian dictatorship of the worst kind – not really worth living, if you ask me.
So would existence under any of the Prime Evils.