Ahhh, more of the "well that system isn't perfect" attitude. Your plan seems to be, well let's replace it with one that is known to fail, quickly, EVERY time it has been tried.
Every system has failed, eventually. That's when you come up with a new system. Atheism as a system has worked fine for me for 30 years. I get to enjoy my Sundays and I don't feel guilty about things I shouldn't feel guilty about.
As far as the Lord goes, His ways are not our ways. When a being tells you that He created all the physical laws, the solar system, the earth and life, you don't start lecturing Him. He will answer questions for those that are patient and pious.
But "the Lord" has never told me anything of the sort. Ministers, Priests, and idiots on the internet have told me these things, but I just don't find them terribly credible.
What you imagine to be barbaric could have been saving the next generations from having sins (punishments) heaped on their shoulders by their ancestors (you are aware that the "new" Covenant with the Christ, changed that?).
Oh, the old "That's the Old Testement(TM)" argument. When god acts like a complete asshole in the Old Testement, that's because it's the Old Testement. The New Testement came along and God started being nicer, so that makes all the behavior he demanded (except the ones that support your bigotry and homophobia) now no longer important. So we don't have to stone those rape victims anymore. Whew.
Apparently you choose to worship false idols (intellect) without having much or using your gift from the Lord: the ability to reason. After thousands and thousands of years of men proving that left to their own devices are corrupted beyond "evil", you want us to do that again. Take that path that ends in total corruption, and destruction. Why? Because this time, "this time" it will some how, magically, turn out differently. Try that reason thing and write down your plan on how that works. Maybe you just haven't seen it on paper.
Actually, I put down a reasoned version of it a few posts ago.
It what I do doesn't hurt anyone, it's moral. If it does, without a good reason, it's immoral.
Examples- I choose to have sex with someone who wants to have sex with me. - Moral.
I cheat someone out of their house so I can make money- Immoral.
Someone attacks me and I beat them silly- Moral.
Person asks me if this dress makes her look fat. - Hmmm. That's a tough one. I could lie and spare her feelings, or I could tell her the truth and maybe she'll do something about her weight. Okay, that's a tough one.
But anyway, it's a moral system that works just fine, really. No need for a sky pixie, no reason to go to a church and lets some hypocrite who can't deal with his homosexuality lecture to me.
No reason to try to excuse or rationalize 3000 year old barbaric myths where being gay was bad but offering your daughters up for gang rape was acceptable.