I'm a Muslim too but I saw a video of his that said in the Qur'an (I'm gonna paraphrase him) "God introduces himself as the greatest, and then says all worship goes to him. This is different to slave masters because he introduced himself as the greatest". That makes no sense to me. So if a slave master says I am the greatest and then tells you to worship it is logical?
I believe the greatest will not punish you for all eternity for being misguided.
[video=youtube;N1MTLgvfFGs]https://www.youtube.com/watch?v=N1MTLgvfFGs[/video]
This video right here gave me so much doubts on Islam.
I could not understand the exact point where did you get confuesed but I can say somethings general. The classic slave-master relationship is that master makes the slave do whatever he wants. He can just torture him without any reason and this is what I imagine in general. However this master-slave relationship is somehow different.
There is a master who created the universe from nothing. Gave you a life, a world to live, food to eat, air to breath... and then for humans The master gives the choice of free will. It is free will whether or not he knows. If you just want to jump from the window most closed to you, you can just do it. However; there is also this point, If you can hold all the parameters, you can know the exact position of a star after 1 year for example. If you know the gravity, you can find the force you will apply due to your weight. Whatever, the point is because He describes himself as Alim-Allam(know every bit of things) he knows what your choice is gonna be and this does not affect you to choose exactly that.
So because the master is the greatest, after creating you and giving you the free will and the neccessary hardware and software, puts you into a test. The master also has angels which cant just oppose his will by creation so no tests on them however humans are created to be the master's caliph in earth so they are gonna be tested for their free wills and for the eternal life. So the master sends guidance, sends prophets, sends books and tells about himself and wants you to know your creator, your master. Be a slave to him.
The point is this, you on your own accept him to be your master and yourself to be a slave to him because of all his names and greatessness. All the information is given to humanity, you have the will to find the creator and to believe in something and then this comes. If you just accept to be a slave in this manner, you will be granted the infinite happiness and inner peace, also in this world. Otherwise, if you say all the books are lie, all the guides are liars, all the things are for nothing, no God... then you will have a punishment, and you will suffer from doubts here.
It is something like state-civilians. If you act according to laws, then you find peace and live happy. If not, then you lost peace. It means you are troublesome and distracting the order. If you kill someone, then you need to be punished. It is justice.
The topic is hard. There can be said more and more things but I want to add this one here;
Whatever someone proposes an argument about Islam or the God, there can be an argument about that to put the former into a doubt and vice versa. There can be found no absolute argument about this. It is a matter of faith and believing.
I also want to add this, after you chose to believe, you do wonder that what you believed in. So you need guidance and you need to do something for your creator because he gave you the life. You just want to find a way to thank him that he made you know himself and he gave value on you etc... I think this is the way a logical person will pursue after believing and this way directly leads itself to accepting yourself to be a slave to The Master.