"Atheists: Why do you fail to see intelligent design? I just don't understand how atheists don't see intelligent design.."
Because I see no "design" in anything and those things that people such as yourself point to and claim is "designed" doesn't say much for the abilities of your designer.
"How earth is well suited to allow life,"
"This hole is so well suited to me it must have been made just for me!" says the puddle.
Life is suited to its environment, not the other way around.
"how well the human body works,"
Are you that unaware of just how many things can go wrong with the human body? Go to your nearest medical school and ask to see their library. To give you just a little light reading check out the section on genetic abnormalities alone.
"Atheists will always say: well whats the difference between believing in Santa Claus, Zeus, the FlyingSpaghettii monster, etc....You KNOW that these are made up, after the Bible was even written!"
And? Your Babble was written long after the ancient Egyptian, Greek, Norse and Chinese pantheons. What's your point?
"Atheists also say: Why is there so much war, diseases, etc.... In the world? That is because we are engulfed in sin. . I'm not trying to force my beliefs on anyone, Im just want your opinion."
Define, quantify and show evidence "sin" exists outside of being a catchall term in theology for "bad things". Next show that "sin" has any effect at all on human existence.
Supply real data, please, not half-assed theological conjecture and outright bullshit.
"Another question: Where did we come from?"
I came from my mother. Why, where did you come from?
"There was just like a sea of water or something and out of nowhere, a unicellular organism spontaneously came out of nowhere? Explain this abiogenesis"
Take a few semesters of organic and biochemistry.
