If those who do believe were keeping and enforcing The Law, then everyone else would see God showering His Blessings on them as He has promised to do (Deut. 28:1-14), and would want what they have. Of course there's only one criteria for everyone: keep and enforce The Law that God gave us.
Ok even if say people did see the "blessings" look at what happened to the Jews over the past Century.... they were blessed and prosperous and the Nazis destroyed them, stole their wealth, stole the treasures they had of art, antiquities, etc. A warped mind can't make good judgements, a mind twisted by fear, greed, jealousy... is not a place to say "Oh look so and so has been blessed they follow God therefore if I follow God I too shall be blessed. NO just like Cain and Abel, one side says I DESERVE the SAME blessing" and if they don't get it, they kill the one who did.
So NO that argument on the basis of cause and effect is moot.
Again you can't have a contract with a God you don't believe in. Everything hinges on that ONE SINGLE FACT. If a human being denies God, then everything has no value or meaning to them. All is relative to their own standard of right and wrong.
Does that mean that God doesn't exist just because a person doesn't believe in Him? No. The existence of something has little bearing on whether I believe in it or not. I can choose not to believe in a black hole, because I've never seen or experienced a black hole, but that does not mean that because I do not believe in it, it does not exist.
What it means though is that my choices in life, are not under the burden of that being. It means I have to make my own way, and decide for myself what is right and what is wrong. Remove God and you get Darwinism, Humanism, Secularism, Daoism, Buddhism, etc...Replace God with Science and Eugenics, Abortion, Designer Babies, Vivisection, Human Testing, Animal Testing (torture), Torture for the sake of SCIENCE, etc all become perfectly ok. It's not a far jump to allow p***philia, Human Slavery, Trafficking, etc because Science says in "theory" it is no different than what our ancestors the chimpanzees do.
Time is not running out, we have a lifetime to decide if we wish to believe in God or not. Some never believe, others choose to believe but only parts of it, while others believe fully. Every generation since the resurrection of Christ... no BEFORE ... since the BIRTH of Christ has had to choose, because before Christ came, there was no choice. A Gentile was not part of the family. Only a Jew.. they are God's chosen people.
Christ changes everything. But if you don't believe in God, you won't believe that Jesus really is the Messiah... if you don't believe in Jesus then well... *shrug* there you go.
So... The Law is fulfilled in Christ, but Christ is only Christ if He is God, but if you don't believe in God, then the Law has little bearing on the choices and decisions you will make in this life.
Neitzche said "God is Dead" and when he said that, it wasn't that God actually died. Rather he said that the Fear of God has died in modern man. Fear of God meaning that God's Judgement and Presence had some bearing on the choices and decisions mankind and society made. Yet, modern society said "we don't need God". We are to become like God. We are to be responsible for our own decisions, our own lives, and bear the burden of responsibility fully for our own failures as well. God is not to blame, God is not to be praised, it is our own effort alone. That's why he defined this attitude as the "Super Man" or "God Man" because we replaced God with ourself.
You said we are spirit beings, and my response is this, we may be spirit beings but we replace our worship of God with the worship of ourselves, nature, crystals, power, intelligence, blah blah blah. Or some just say nah, I'm alive, I will die, rot, and become dirt. It is what it is, no point in looking ahead, no point in looking back. Just live now.
It's that mentality that is driving the whole "Global Warming" fear mongering, granted we are supposed to be custodians of this planet, but the level at which people like Greta Turnburg and others are sperging out the panic has me thinking they have been fed the lie that this is it, and tomorrow is over if we don't act now...