Well you are 100 % wrong about the Railroad . They give them new memories and only one do you see turns out evil . Which honestly is way fucking better than normal humans because based on all the raider settlements compared to the normal people , it is basically a 5050 chance of any child becoming a raider . Even when their upbringing is a good one they can turn to becoming a Raider when things get just a little bit harder , like Jake Finch . The Brotherhood only mass murder Supermutants which are technically human still and other radiated creatures like Deathclaws . They do discriminate against ghouls but it is justifiable when you remember that any ghoul can turn feral at literally any moment . What they do with Synths only matter if you already consider Father evil , so I ' ll skip over this one . Father , and the Institute , is the only objectively evil antagonist in the main story line . Even if you don ' t consider Synths alive . He still kidnaps innocent , kind and honest people then proceeds to torture them to learn everything about them so he can replaced them with a Synth after he kills them . He also routinely murders even more people above ground to get any technology that might be useful to him .