Do atheists really believe everything in the universe came from a freak random explosion?

It blows me away how atheists claim to pride themselves on "logic, and reason" but then believe in the Big Bang non sense. So you guys really believe all the extremely complex things in the universe came from an explosion? I thought explosions destroy things not create things? Everything in the universe is so complex, and designed so perfectly, that it reeks of intelligent design! If you guys don't want to believe in the Bible God, fine. But you HAVE to believe some type of intelligent designer created the universe. Otherwise, you all would be dishonest to your claims of logic, and reason.