Why a Mexican knows/thinks "reverse discrimination" is a bad idea

Oh and I'd never get rid of whites. What if me and other "minorities" are an anomoly? Time travel, worm holes etc show that history could be altered or sabotaged. What if I'm "fake" or engineered? Even if not, just as much reason to save white people AND everyone else since an enemy/competition wouldn't put all their eggs in one basket. And no enemy? Even less of a reason to fight and enjoy the beauty that's life. How do you stomp out a strong enemy/competition? One way is turn their defenses against themselves or on FUTURE allies since nations rise and fall. This too shall pass sound familiar?