Having watched the movie the other day, a lot of these are just stupid projection. For example: Bruno doesn't 'hit' himself for that kind of reason. He is extremely obsessed with things that bring luck/dispel bad luck, so throughout his scenes he is 'knocking on wood', which sometimes means he knocks on his own head...as a joke....like haha I'm so dumb, my head is made of wood.. I feel like a lot of these SJWs are just using the movie for popularity and either haven't actually watched it, or projected their own ideals etc onto it while watching, so missed everything that showed these are just normal people who occasionally express themselves in unique (but not autistic) ways.