Born Muslims Have Unfair Advantage?
I agree with the fact that just being born in a Muslim family will not suffice for acquittal on Judgement day. That’s why I said that being not mushrik and believing in Prophet Muhammad are necessary conditions, but not sufficient. But, my point is that being born in a certain religion sets one off with a highly biased initial condition, which will define the thought process and ultimately the belief, if one spends the effort. Being born in a Muslim family will encourage you to find out more about Islam first before any other religion. You will spend most of your life to strengthen your own belief, to learn what Allah wants from you and live life according to that because, as you said that is what is ultimately required from us. Even if one reads about other religions, its most of the time, to find faults to strengthen your own belief rather than the mindset that the other religion could be the right one. I believe that will be true for other people too, born in non-muslim families. They will set off being biased towards their own belief system, and will likely hear arguments, read books etc. that strengthen that belief, let alone read about other religions. But, if that results in Shirk, deprives them of the necessary condition for maghfirah.