In a game with a pantheon, morality should be codified differently according to each God and Goddess. A single unified system of law/order/good/evil requires a single Absolute Judge.
No, it doesn't. I notice a lot of strict and unfounded assumptions in your posts. These signs of arrogance and a very self-centered personality are much more suited for being a NPC villain in this game than a questing party member. This attitude is a big red flag for being part of a cooperative game. And your suggestions here are extremely narrow-minded, which is confirming my earlier speculation that you're not bringing sufficient creativity to the game system. There are a lot of self-indulgent proclamations, but nothing intelligent.
you insist that giving the players instructions to follow in regard to morality/lawfulness/chaos is absolutely essential. Presumably, because you don't see how such concepts could be addressed in the game without such instructions.
Lack of understanding of game design, and another irrational assumption. I've already corrected these errors in previous posts. I recommend going back and reading them.
Nor is there a need for an absolute objective system of morality to put everyone on the same page regarding good and evil. In fact, it's more interesting if not everyone is on the same page about morality.
This is nonsense. It seems like you are being willfully ignorant, now. The system is there to provide players with a way to add consistency and depth to what would otherwise be just this kind of tedious blathering. No one wants to listen to a blowhard drone on about personal opinions; they want to PLAY. Good and evil are intrinsic parts of the theme of the game, and have mechanical significance. Codifying them and giving them a connection to the game is welcomed and enriching. It's up to the player to get over themselves and use the tools provided to play the game with other people, who are also following the same rules. You can save the college freshman philosophy talk for after D&D is over.