>>47291Pacifist is normgroid nonsense, pandering to a race of child murderers so they can potentially live out their blood & soil fantasies on the surface, while turning Flowey (the best character in the game who actually understands the world) into a deeply forgettable crybaby who does nothing with the knowledge he's earned. And there's a high chance it gets reverted anyways.
Genocide is actually understanding the world for what it is, an endless cycle of predictable actions by flawed creatures, which you can break by stamping your will onto this world, even if it forces you to make horrible decisions against your morality. Of course, this makes Genocide sound way more compelling than it actually is, as Toby decided to fuck it up by shoehorning Chara in and subsequently pushing all of the character's agency onto Chara. Fun!
If you want to talk about left/right dichotomy (even though it means nothing), there's a case to be had that pacifist is right-wing in its preservation of useless relations simply because, while genocide is actually left-wing in its destruction of the old order and the construction of a new, better world (as lvl20 allows for world creation a la Chara). Pedantics and whatnot.