I disagree, science left because it wanted what the church had; power, influence, position in the public, respect and admiration.
Also I agree that Atheist have every right to like science and use it in their arguments; I use science in my arguments for God being real everyday.
Dude, science, philosophy, etc were around LONG before Christianity.
Much of our knowledge is built upon the teachings of the Greeks, much of which was lost during the Dark Ages - that 800 years when the church controlled Europe and humanity there did not progress.
Dying to live, living to die.