You know Berean that it pretty much comes down to this, you have questions. Questions that no one has answered to your satisfaction. That's not surprising.
It is not man that will ever lead you and guide you into all truth and understanding. It is the Holy Spirit, the Spirit of Truth.
You have have one teacher...Messiah.

However that being said sometimes when it comes to the Law, it helps to shift your perspective.
If you see it as a matter of religious imposition, then it becomes just that. However if you choose to see it as a matter physics, then a whole new world of wonder will open up to you. Because in reality the Law of YHVH and the Laws of physics are one and the same.
So a person can fight against the law of gravity all they like, but in the end they only end up hurting themselves and of course everyone they happen to land on.

Just a matter of note: When Yahshua said he came to fulfill the law, well first off the word fulfill is 'pleroo' (Spelling might be off there) Anyway this word actually means 'to cause to abound' to overflow.' Kind of in the way of overflowing a cup. If you see it in the sense of an overflowing fountain then you'll get a sense of just what Yahshua was saying in that passage.
Poor translations make for poor understanding.

Michael