Fitra is Islam's answer to the question of what a human being is before culture gets to them, and the answer is: already pointed the right way. It is the reason Muslim converts are usually described as reverts and the reason mainstream Islamic theology has no doctrine of total depravity to argue with. The pastoral consequence is significant — a person who has never heard the message is not automatically condemned, and jurists developed an entire discussion of ahl al-fatra, the people of the gap between prophets. Where it gets uncomfortable is in polemic, where fitra is sometimes used to imply that everyone who is not Muslim has been damaged rather than differently persuaded. Muslim writers on interfaith relations tend to handle it carefully for exactly that reason.