Is it logical to assume that cars, buildings, trees, stars, people, or anything else could come from nothing? I mean think of it, do you ever walk down the street and a random car just happens to pop outta nothing? If you were to wake up one morning with a bouquet of flowers at the foot of your bed with a Valentines letter next to it saying 'I love you', would your first gut reaction be "Wow, these beautiful flowers must've just popped outta nothing!" Why the prejudice toward the beginning of everything popping outta nothing? Why doesn't this happen all the time?
This is literally worse than magic. At least with magic there was a magician to pull a rabbit out of nothing.
The logic goes as follows: Everything that has a beginning has a cause. We know scientifically that the universe had a beginning, therefore the universe had a cause. We also know that that cause had to exist outside the universe in order to create it, therefore it must be spaceless, timeless, and immaterial. Also, it is uncaused because it logically has no beginning, it is the uncaused first cause... Now, that cause can only be one of two things: either a spaceless, timeless, and immaterial object created something out of nothing; or a spaceless, timeless, and immaterial mind created something out of nothing...
You decide which conclusion is more logical... Keep in mind the precise order, complexity, and intelligibility to the universe which is so specifically fine tuned to support life. I just find any explanation other than God to be completely illogical.
That's why many atheists give up and are actually willing to accept such an audaciously ridiculous theory that the universe could actually appear out of nothing...