Being evil is brutal in BG3. They have you go through turn-based combat to murder defenseless civilians, party members are totally broken by the actions they took and openly hate you, and the party members that stay comment on how much of a backstabbing bastard you are.
It's nothing like a campy, fun Mass Effect renegade playthrough. Kinda depressing honestly.
And simulates it in escalating military exercises every year while rapidly expanding its navy, including massive landing barges. But, sure, fear mongering.