SCIENCE doesn't really challenge the existence of God, anymore than a book on the rules of chess challenges the existence of people.
for people who believe in God, the laws of evolution were determined by God.
if God decided to create the laws of evolution, why challenge Him on it?
Here's the point. If God created the universe He obviously had a plan. When a Darwinist claims that the universe exists by random chance he is making a claim about the existence of God.