Bernard Marx is considered strange because of his behavior and height is uncommon among his caste the alpha plus. This causes conflict with the other alphas considering their different perspective which you can see during Henry interaction with the Assistant Predestinator about their treatment of females, they regarded her like a piece of steak. Their conversation shows how much marx differed from them with his statement “Sixty-two thousand four hundred repetitions make one truth” when Henry commented “Every one belongs to everyone else after all this is an indicator that marx doesn’t approve of the current social norms. Normally the people in caste are known to be very social unlike Marx who is socially awkward and antisocial.
