You see this is the wonderful creation of Allah (SWT) called man. He is capable of so many things. Obviously out of the opposite views only one can be correct at a time. And which one is correct can not be decided by us. That is why we need the Wahy. Still people are besotted with their own opinion. Implementing what Allah (SWT) wants us to do it difficult enough so it is a wonder as to how we can afford to have any opinion.