Salam. Polytheism against with Islam which is monotheism so if polytheism leads to several sects these sects are not true Islam. Muslims should stick on their basic belief (1)one and only God Almighty that is Allah swt (2)Respect and love all Prophets with the most love Muhammad pbuh (3)Muslims believe in qiyyamah,resurrection day and the day of judgement.
(4)Muslims believe in the existence of paradise/heaven and hellfire. There is any justification for any sect which hold tightly the Qur'an and all sahih hadiths. Other sects who do not hold to it such as Shiites,Ahmadiya,Wahabis etc are not true Islamic sects.
Both Islam and Christendom have many divisions, but there can only be one truth-you mention Hell-no loving God would torture anyone-both Muslims and people who misunderstand the Bible, got that one wrong!
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.