i want to address this question specifically to believers who have been raised into a religion when they were kids and that sticked to that religion ever since. The question is simple:
how do you explain in you heart the fact that you were born exactly in the part of the world where the true religion is taught and in a family that follows it?
What is the true religion ?
It is impossible that each religion is the true religion, so we have to search for the truth ourselves, our
fathers religion isn't an excuse as God knows that many will make it as an excuse and make guesses.
THOSE who are bent on ascribing divinity to aught beside God will say, "Had God so willed, we would not have ascribed divinity to aught but Him, nor would our forefathers[have done so]; and neither would we have declared as forbidden anything [that He has allowed]." Even so did those who lived before them give the lie to the truth -until they came to taste Our punishment! Say: "Have you any [certain] knowledge which you could proffer to us? You follow but [other people's] conjectures, and you yourselves do nothing but guess." - 6:148
But when they are told, "Follow what God has bestowed from on high," some answer, "Nay, we shall follow [only] that which we found our forefathers believing in and doing." Why, even if their forefathers did not use their reason at all, and were devoid of all guidance? - 2:170