reasoning in comments

you're right

the reason it will never work is because it takes away from the whole point of the game, if the game is gonna be about BOSSFIGHTS and there arent any BOSSFIGHTS, whats the point? the only reason people are making these "pacifist routes'' is so their boss doesnt actually die, though they arent thinking of the player of the game, and their expeirence but rather the beneficial factors of their own boss, thats why i think the only main route should be the genocide route, it adds background and character to the actual story and makes the character feel emotion and get attached to the game itself

Their should be some bosses you have to kill and some you can spare

yeah, but there should still be some helpers or friendly characters if the rest of the bossfights will be so hard.