When Muslims talk like this doesn't it make you sad?

Actually Islam has only one great group called as Mulims and bound to follow Holy Qur-an and Hadiths only. If any body study this very well no need of any Madhab.. Madhabs are for innocent common Muslims who are ignorant of holy Qur-an and life of prophet. So it does not matter one follow it odr not. Actually all Madhbs are treated as correct even though it may contradict in some matters.