I hardly know where to begin, you spew so much nonsense that it is beyond comprehension. Almost. I am human as well, and I once thought as you do.
You are NEVER going to understand God to the degree that He has revealed Himself to us so long as you believe YOU get to determine the 'rules of engagement'.
"Why are you okay with God killing babies if you say killing babies is wrong?"
Who said I was "ok" with it? I accept that God, Who is perfectly just and perfectly loving and perfectly omniscient, knows what He is doing. The death of any of us, and we all die at some point, is the direct result of sin- violating God's commands. You may whine (and man, do you ever do a lot of it) that it is not fair that God cursed all of mankind because of one man's sin, but you have had the same chance Adam did, and yet you choose to sin anyway. I do not care that you do not believe in God, apart from where that leads for you in the end.
Babies may die in this life, but they, like all of us, live on in the afterlife. Many Bible scholars affirm that all babies go to Heaven, given that they never had a real chance to sin. I affirm that they are in God's hands, and for the sake of not wasting my time with you, I will not explain my viewpoint as to what that may mean. Suffice it to say that God, Who is love, takes care of them appropriately.
"Religious laws or laws from a holy book are not what run this country."
That does not make it right. The nation whose God is the Lord, is blessed by Him. Given the nature of much of this country's founding, there is good reason to believe that this is why this country had grown to be so prosperous. One thing is certain- to the degree that we depart from the basic laws of God (you shall not murder, you shall not steal, etc), we do a great job of creating hell on Earth.
"And keep in mind that there are many laws in the Bible which are savage and barbaric, like allowing for slavery, and commanding the death penalty for blasphemy and working on the Sabbath."
You know not of what you refer to. The issue of slavery is much different in the Bible when it comes to God's commands surrounding it vs the type of slavery that took place in the US, and still exists in the world.
As to being "savage and barbaric", only a godless dunce could arrive at this conclusion. You do not have to understand why, though with study much of this becomes apparent- God typically explains why- in most cases, God was meting out justice to barbaric men.