Let's talk reason and common sense ... shall we ?
Sure!
#1 : Allah(God) knows best about His creation, and He will never treat anyone unfairly and unjustly.
Ok.
#2 "Whoever is guided is only guided for [the benefit of] his soul. And whoever errs only errs against it. And no bearer of burdens will bear the burden of another. And never would We punish until We sent a messenger." (Al Qur'an 17:15)
A person who has never heard of Islam or the Prophet SAWS (peace and blessings of Allah be upon him), and who has never heard the message in its correct and true form, will not be punished by Allah if he dies in a state of disbelief
Some problems here.
Life as I witness it has plenty of people bearing the burdens of others.
Also, you seem to be implying that it is possible that atheists may exist that are not properly sinners, but instead simply fail to see the true message of the Quran (perhaps because it was not presented fairly to them).
I'm afraid I can't agree with that, to the extent that it still implies that only ignorance of "true Islam" would make atheism not a sin.
#3 To you something else might be a bigger sin, but to God(according to the Qur'an) associating partners with Allah(God) in His lordship is the biggest sin.
"O my son! join not in worship (others) with Allah: for false worship is indeed the highest wrong-doing." (Al Qur'an 31:13)
That brings an interesting, if perhaps unanswearable, question: is the God who demands worship possibly a true God?
Another, even more important question, is how can one possibly tell what constitutes false worship.
Do the various, often mutually exclusive conceptions about what God is like (even within Islam) constitute worship of other Gods?
I sincerelly feel that answering with either "yes" or "no" would be a serious injustice. A more complex approach is needed.
Also, by that token, isn't perhaps atheism in fact better from a moral standpoint?
So if you are going to use Qur'an to prove Islam false, at least go by the definitions stated there in.
#4 Imagine you tell your dad that I don't believe you are my father and I am not going to obey you. What is he going to do ? He's going to kick you out of his house instantly. At least God is letting you live and enjoy this life and still giving you an opportunity to mend your ways and turn to Him.
That is not an applicable parallel. God never presented himself to me, after all. It is hardly my choice to be an atheist.
#5 So essentially all I hear is your emotional whining that you don't wanna accept God and do not want to follow Him but you don't want to be punished either for denying Him and all the blessings that He bestowed upon you. You know what ? That wouldn't be fair to all those who believed in Him and obeyed Him day in/day out for the duration of their life.
Peace.
Whining? Is that how it comes to you?
God is probably an ok dude. I don't mind if he turns out to exist after all. I certainly have no beef with him, nor can he possibly have any with me.
Heck, if I ever meet God, we will probably have a lot to chat about how badly understood he is.
I do not believe that will ever happen, but I certainly do not have reason to fear that. I know myself well enough, and I take my beliefs seriously enough, to know for certain that it would not make any sense whatsoever.