Without the Shedding of Blood There is No Remission of Sin

[SteveII]

You are making a category mistake. God and his creation are not in the same category and as such does not have the same obligations to each other say two humans have. 

While I could quibble about your exact examples of God's laws, it was a different time and a different system--a theocracy--coming out of a civilization where you lived and died each day according to your wits and the whims of those around you. God very much wanted his people to obey a certain set of guidelines.The structure was unlike anything ever implemented--and it had a purpose: to be set apart from the other people groups. 

You seem to be implying that we should be bound by the rules of the theocracy that only existed for 400 years (from the Exodus to the fist King)--where even during that time they didn't seem to follow it all that often (the time of the Judges). The Bible does not teach that. 

You are right about God's judgments not making sense in our modern times. That's why you have to study the conditions and the reasons of the time of the action to understand it. 

He understands our desires but still has rules that he thinks (as only an omniscient person could) are better for society in general (greater good) and for the individual's long-term internal welfare. 

While God certainly still has the right to 'kill' us (because the categories remain the same), do you think that Christians believe that he does kill people as judgement today? I certainly don't believe that and don't know anyone who does.

If he's in a different category, then what good is he to us? He doesn't show himself. [1] He's so alien to us, as to be impossible to understand. [2] The idea of it being a different time and place doesn't really hold water, when most christians say he's all knowing, never changes, and is perfect. So why did he do things that didn't work in the long run, and don't apply to today's time. [3] What good is the bible when we can throw the majority of it out as irrelevant? Those rules that are supposed to help us are outdated, save for more vague rules like be nice to others, that you can learn from any other book from other cultures. [4]

You've never heard of people saying some natural disaster was god's wrath upon a sinful people? [5] People today kill in his name because of those rules that are supposedly supposed to help society. [6]

He's incomprehensible, unrelatable, and the teachings of his book are either outdated, or can be learned just as easily from other books puportedly divinely inspired by other deities. [7]

1. I believe he has and does from the existence of the universe to the OT to the NT to today in the lives of people who desire a relationship with him.
2. Only if you refuse to look.
3. Why do you say they did not work? They accomplished the purpose he had at the time--to get us to the NT, where the rules were changed forever.
4. There are many useful things in the OT--even in the books of the law. They continue to show us that we cannot live up to God's standards under our own steam and our only course is to accept the redemption offered in the NT. You said "those rules that are supposed to help us are outdated"--I don't believe, beyond what I just said, that those rules do help us. Jesus give us a new set of rules. Matthew 5; Luke 10:27
5. Ignorant people. Not anywhere near any teaching in the NT.  
6. The God that revealed himself in the NT? I don't think that is the case. 
7. There be 39 books of the Bible specifically intending to make God comprehensible and relatable. The teachings in the NT are not outdated--in fact the world would be a very good place if people would live by those precepts. There is no other religion or religious writings even remotely similar to the NT with its message of redemption.