Which Shiaa swear less? Iranians, Iraqis or Lebanese? is it Halal to marry a Shiaa?

well i`m a moslem , but not sheaa , sunni one , i dont like sheaa at all , but i got a step father who is sheaa , he swears alot , all the time , most of them swears , you cant specify one , they are crap , *** people , and marring one is awful , i dont recommend it at all , even though its halal of course since they are moslem too , but no one should consider this as first option . screw them .