Those "Twelvers" are a product of their up-bring. They learned their "bad acting" at the knees of their mothers.
I learned to dislike the Persian/Iranian attitude a long time ago. The word "aryan" (forming the country IRAN) means PURE, by the way, and they do consider themselves the PURE race.
That is where Hitler got his "pure race" crap.
Actually Hitler got his ‘master race,’ aka ‘pure race,’ crap from the muslim Arabs and their “koran” - much of which he plagiarized to write “Mein Kampf” in a Germanized form.
Any thought of present day Persians conceiving themselves as ‘pure’ comes from the 6-7th Century conquest of Persia by the muslim hordes under Mohammad’s Disciples and is not a native Farsi concept, rather an Arab one.
Sorry about your hated of ordinary Persians. But do not confuse them with the 12ers. Attributing their ‘bad acting’ to their mothers is a poor argument.