Monotheism barely exists

[ComradeMeow]

It has donned on me over a period of 6 months roughly that no religion is actually monotheistic in any sense although Sikhism could have a shot at the title along with Deism although it is not a religion.
The primary 3 "monotheisms" are Christianity, Islam and Judaism which are also all Abrahamic. These religions all posses angels and other supernatural beings along with others that are worshiped. 

Christianity of course has the trinity along with angels and the Catholic fraction of it has the worship of saints. 
Islam treats Muhammad as divine to such an extent his name is mentioned in Tashahhud during all prayers and he is given blessings even in death along with the ability to supplicate through him or other prophets in Islam(Sunniyah) while Shi'ite Islam is more blatant in this. 

Now Judaism I am less familiar with but I will take a shot and say that some less orthodox branches of it have polytheistic tendencies, correct me if I am wrong. 

I used to be a Muslim by the way and I loved touting the Tawhid (oneness) brand and wasn't able to reconcile it with the obvious shirk that is permissible in Islam contradicts the religion itself.