Gods Religion

God have any religion of his own? Like God is Christian,Allah is Muslim, and Shiva is Hindu or Santani whatever? Is it like that, Buddha don't have any religion because he said that there is no God and there is no centre of universe so in Buddhism there is no question of God and its religion but in other religions every God must have a religion like Jew, Christian, Islam, Hindu, Sikh, Zoroastrianism and other in all these religion there is definitely a phenomenon of God with different names but what is there own religion? Like What is religion of Brahma, Vishnu and Mahesh? What is the religion of Abraham Jew claimed he was Jew, Muslims claimed that Abraham is Muslim and Christian said that he was Christian all the three religions claimed that Moses, Jesus are also from there religion ( with some differences) Buddha negate all religions and God.Now there are plenty of sects in Hinduism also like Shaiva, Vaishnavism, Shakta, Tantrik, kapalik, Adwaita, Dwaita Aghori,and Nastik and many more which I don't remembered now, my question is still the same that what is the religion of Gods? They have there religion or God is one? In movie PK there is satire that God is sit in the office which is called by different names like Church,Temple,Mosque,Pagoda,synagogues or whatever names they use to have, why don't these different Gods decide there own religion and release a disclaimer that we are Gods of such and such religion and we don't entertain a person of any other religion that means Lord Ram don't protect any Muslim, Christian or even a Sikh because they don't belongs to his own religion, Christian Gods like Jehovah or Christ don't save any Hindu in danger same as Allah don't save any Hindu or Christian because they are also not belongs to his own religion, Shiva only helps those who prayed only to Shiva otherwise all you know he is God of destruction he can destroy anything, Shiva even don't save the devotees of Ram and Krishna and even Kali because the person who served them are not at all deserved to to be saved by him, is in't our phenomenon towards God is like this? Suppose if a Hindu starts reading Koran or Bible or Zend Avesta or Gurbani that means he has done a very big crime, vice versa happened to the people of Other religion if they read holy books of other religion? Why people made God so small? Ram don't say any time worship me, Krishna said worship me but he said that whomsoever you worship you worship me in either way it may be any one or anything in all form you worship me, some Hindu organisations said Shiva was insulted in the movie PK when the protagonist of the film runs behind him, How Shiva be insulted by that? First of all he runs behind an actor who played Shiva as a stage actor in films only so in this small matter Shiva is insulted, if someone go to the Shiva Mahapuran you find that how badly Daksha tried to insult Shiva but Shiva is total Vitraagi he don't have anything which gives grieves him or give him any happiness, second thing somewhere I read that if you want to gain success in life than chase Shiva and in the movies innocent protagonist chase him, by this he did a crime and he badly offended Shiva, isn't it? I feel pity for them who felt like that, same things happened in other religions also Christian are also like that they attacked Dan Brown when he written the Novel 'The DaVichi's Code' and Muslims criticised Salman Rushdie and Taslima Nasrin, every God has his /her own religion some people questioned about the gender of God also that God is male of female he is visible or invisible and all this kind of stuffs, Formless god is good without form God is also good. After seen all this I still confused that God is one or Gods are different according to the different religion, Do all off you have any answer? If you have any answer than please give me the answer.