No, I did not say species discard detrimental attributes.
Species discard unimportant attributes which are detrimental to the species over time.
Very important word is underlined for you here.
Persecution is not an attribute, it is an action. To understand how natural selection works, it's vitally important to understand the difference between attributes and actions, they are not the same thing. If actions were discarded, there wouldn't be any 'natural selection' needed. The "less fit" would be equal to the "more fit" because the "more fit" would discard their action of killing off the "less fit" for the sake of species preservation. That obviously is not the case with "survival of the fittest".
What you are doing is confusing an action with an attribute, and I am not sure whether this is because you are just plain dumb and don't comprehend the difference, or you are dishonest and want to try and establish a dishonest point.
If an attribute is unimportant, how can it be detrimental? That would make it important.
Persecution is certainly an action. What I have tried to point out to you is that when you describe natural selection as removing detrimental attributes (yes, you said unimportant attributes, but then described them as being detrimental over time) and then immediately describe religious persecution as detrimental, you are connecting the two statements. Perhaps it was unintentional, but there we are.
Belief is action. This is true of spiritual belief or religious belief. Now I realize you think there is an inherent spiritual nature in humans, but believing is as much an action as persecution. So again we come to the question of just what, exactly, you are saying human spiritual nature actually is. If it is an attribute, not an action, then you are not saying it is belief in something greater than one's self unless you are trying to claim that believing something is not an action.
Oh, and natural selection certainly could result in actions being discarded, if indirectly : if an animal with a particular instinct, say to attack other members of the same species that intrude on it's territory, were less able to survive and reproduce than others of the same species that didn't have that instinct, that instinct could be weeded out, leading to that action no longer occurring.
It is not the same with humans, however, as we have found many ways around things which would likely be weeded out of other species; and, of course, we rely very little on instinct, which leads to more unpredictability.