Welcome to uncle Kotomine's moral relativism basement. Leave your shoddy ethics on the doorstep.
Shouldn't have forgotten your servants skill-set
Would you let Angry Manjew be born if it gave Kotomine a chance to be happy?
>not liking A̡̗̗̝͙͔͍̬͕̻͚͖̻̺͒̽̍ͣͦ̀̍ͭͯ̀̚͘n̸̛͚̲̲͕̠̘̯̱̟͕̭͔̠̻̹̠̦̯̂͐̀ͨͪͪ̈́ͬ̀̚̚̕ǵ̴̸̳̠̩̤͈̪̦̺͉̉͆̍̉͐ͭ̌̒ͦ̃̅ͮ̃̏̚͘r͓̦̼̲͈̜͎̙̗͛ͯ̌̇ͦͨ̇͌ͩͯ̓ͩ̀͋̈͌͛̕͘ͅy̵̧̜̗̮͓̣̙̦̝̺ͨ͌͒͗̊̓͑ͤͮ̉̍̚ͅ ̅͒̄͐̎̆ͬ̀͞͏̴̭̯͍̟̥͈̰̪̺̼͇͇̀M̵̷̶̱̞̞̹̰̬͉̗͇͓̣̜̯͋̊́͑̄̎ͪͩ̽̆̊̋̅̊̇͟͟a̴̶͈̮̱̩͕̬̼̬͉̰̙̓́̅́͑͗ͧ͗ͮ͆ͩ̇̈̇̃͒̑ͭ͜n̡͈̞̻̥͔̭͕̱̗̯ͣͬ͒̈̂ͨ͊ͮͬ̅̓̓͂̎̋̆̀̚͢͠ͅj̶̨̨̡̳̘͙̖͇̠̥̩̞͙̘͋͊ͯ̍̾͟ͅe̷̪̤̟̥̺͇͍̹͒ͯ͊̀̿ͧͦ̾̀ͭ͂w̨̧̹̦̯̬̞̋̋͊̈́͊͆̓͌̋ͩͧͩ͑̏̓͢ ̥̭̦͇̖̟̥̦͖̥͍̩̯͓̬͌̊ͯ̽̚͢͟
Man, this Ilya route is as much her route as UBW is Rin's
Kotomine by his own morals and standards calls himself evil though. Not by someone elses ethics or morals.
It wouldn't make him happy though; he fully admits at the end of HF that there's no hope in this path, even if he won he'd simply be dead just the same without his answer. However this was his only path, he will not retreat, he knows no other way. Thus he'll push forward without question.