to sell you something. But for most topics they aren't as simple or straightforward even if some people try to make it that way. It's more of a scale. Lots of grey.

Just because there are scales of grey doesn't mean there are not more correct versions of things depending on your goals. Just because they are not clear does not mean they don't exist. Simple and straightforwardness have nothing in relation to the correctness of them but the accessibility of that correctness.