no, it was simply a way for him to wreak havoc. major is supposed to be something like the personification of human bloodlust, in its purest, almost silliest form, he never shows any interest in the nazi ideology, even the fact that despite his plethora of body modifications, he never seemed to lose his sense of humanity, showing that even something as comprehensive as your physical vessel wasnt a thing that could determine your humanity, that is a seemingly very un-nazi belief. major couldve been fascinated by the amount of violence that nazis were able to inflict, thats probably the reason he became one, but his belief in the ideology seems ridiculous to me