Systems like Christianity are way too complex, ancient and far removed from modern society - the Ten Commandments were pretty concise, but then there’s so many other ‘do this, don’t do that’ rules and suggestions, in Leviticus for instance, plus then the New Testament which has some things that override the old one. Then it’s tied to this supernatural gibberish and tall tales and legends that barely make sense (Noah’s Ark, for example, or Jesus magically creating food and healing people), plus centuries of rationalizations of the contradictions (Trinity) and additions used to control people (eternal hellfire!). For a book supposedly dictated by a supreme being, the Bible sure could use a damned editor. Probably the whole thing should be scrapped, but newer religions aren’t much better, if at all.