யொவ் யார் வெனா யார வெனுமுன்னா stupid சொல்லலாம். அப்படி சொன்னா அது உண்மை ஆகாது.
Most often difference of opinion arises due to understanding or rather misunderstanding. And misunderstanding arises due to the language or linguistic barrier.
It takes intelligence to see through the language barrier and to understand someone. Just disagreeing and calling someone stupid shows one's own intellectual deficiency.