Ramadan, why are al-shabab behaving so appallingly?

somalia, they have banned foreign aid workers from helping the starving people. They previously banned women from wearing trousers or be flogged. They called for the beheading of an english teacher as her pupils named a teddy bear 'mohammad'. They insist men grow beards. Watching or playing football is banned. And the most ridiculous yet, samosas that have been eaten for centuries are now banned as they say the triangular shape represents the christian holy trinity.