Why do I say that Islam is an evil religion?

[arewethereyet]

I already answered both of these questions, the latter right there in the bit you quoted......  Mind you, in a realist understanding, it doesn't matter what you put into any given category, it matters why you put it there.  The statement either does or does not report a fact.  I could conceivably call a thing evil, because I feel a particular way about it, maybe it's close to me (as you imagine the issue of a cheating spouse will have any given woman plotting murder as they apprehend a moral monster, lol) - but that's not my position on the morality of it speaking, if so, that's just my emotional investment compromising my rational agency. 

It's probably more than just your emotional investment ....... one can plausibly argue that tolerating cheating -as long as one can get away with it- threatens family stability, and hence society. Maybe an increased number of unfaithful husbands is correlated with, say, a higher divorce rate. This might be an argument to condemn cheating even under moral realism.

But let's say there really is no factual basis for condemning this act, it's still conceivable, as you said, to call it evil.

All you're saying there, is that you believe that there is no objective reason or explanation for why disobeying a supernatural being is an evil act.  Is that what you believe?

In a world where naturalism is true, there is obviously no objective reason for why disobeying a supernatural being is evil, because there wouldn't be any supernatural being.. In a world where theism is true or, at least, where naturalism isn't clearly true, one can indeed have good reasons to believe that such an act is evil -say, they had a genuine religious experience that justifies their personal belief and hence their fear of God etc.

Cheating is a broken promise.  It can cause hurt and mistrust.  I might go so far as to say it's evil if the person he cheated with was my sister (which would never happen as they don't like one another) or my best friend.  But it still wouldn't be evil in a heaven or hell kinda way.

Precisely. It's still an evil act even if the person gets away with it, and no one in their right mind can tolerate such an act.. for me religion clearly has an advantage here as it explicitly condemns it, whereas secularism fails to do so.

Read that again.  I said it isn't an evil act in a heaven or hell kinda way.

Mean, thoughtless, I can think of a lot of adjectives, but evil would be an emotional reaction while I was freshly pissed off.