Frum,
You think those guys don’t think? Listen to them. They are completely convinced that they are right, after arguing about it. Bottom line, you usually think what you want to think. We do it and they do it. You look for arguments that support you, and toss or ignore those that don’t.
We aren’t Amish and don’t advocate Rumspringa. We are Mechanech our children (we try to, at least) with a very strong foundation in Emuna. It’s not up to you to choose.
Rabbeinu Saadya Gaon writes that although it is important to understand the arguments, it is equally important to accept what you agreed to. Otherwise, you will have a different faith every day, and you’d be coming back, and switching between, religions twice a day.
From our comfortable pirch we do mull over some arguments and perhaps proofs. We feel moral and sensible. On the other hand I don’t think a person who cares about morality can justly make his life’s goal killing men women and children.