The problem with that theory...
There is no problem with that theory. It's called normalization of deviance. It's a well established principle.
is that to comply with the Law results in abundant blessings and eternal life ON EARTH, and failure to comply with the Law results in death, a curse.
One of the misconceptions of Judaism that Jesus corrected is that it's not about rule keeping. It is about having a relationship with God. If one's relationship with God is right, all other relationships will be right and there won't even be a need for rules to be kept because everyone is doing the right thing and when they make a mistake they take accountability and rectify it on their own.
You can't even tell me how or why complying with the rules results in abundant blessings and eternal life on earth, can you? Because you certainly don't follow the rule of civility which is most likely because your relationship with God isn't right. If it were you wouldn't constantly be at war with Christians. You would be at peace.
Your 'belief" is that God is a capricious petty tyrant who makes laws no one can comply
That's not my belief. I think that's your belief. My belief is that God is loving. So much so that he chose to be born into this world to testify to the truth and suffer death to reconcile justice with mercy. How can you believe Christians believe God is a capricious petty tyrant when Christians believe that God will not judge them for their mistakes? Your belief makes no sense at all.
Jesus taught that true righteousness is about a transformed heart, love for God, and love for neighbors, rather than merely keeping external rules. He fulfilled the law by focusing on intent over action—teaching that inner attitudes like hatred or lust are as sinful as actions, while emphasizing mercy over rigid legalism. In the Sermon on the Mount, Jesus declared that inner thoughts (hatred, lust) are equivalent to acts (murder, adultery) in God's eyes. He pushed beyond mere conformity to a list of rules to demand true righteousness. Jesus defied religious leaders by healing on the Sabbath and allowing his disciples to pick grain on the Sabbath, declaring that the Sabbath was made for man, not man for the Sabbath. Jesus summarized all laws as loving God wholeheartedly and loving one's neighbor as oneself. He argued that following these two principles is the essence of true obedience. He frequently broke with the traditions of the Pharisees, such as ceremonial hand-washing, arguing that what truly defiles a person comes from the heart, not from unwashed hands. Jesus taught that followers should keep his commands out of love for him, rather than keeping rules to gain merit or out of a sense of legal obligation.
with except if he diddled a virgin to become a sacrificial mangod to pay the penalty for your sins. No wonder you are such a jackass.
It is the Glory of Christianity to have enemies that are hateful, irrational and deceptive because it proves that Christianity is loving, rational and the truth.