First, “religious people” do not “become atheist” by using logic and reason. The definition of an atheist is one who believes in no gods, not “one who uses logic and reason.” And the opposite of an atheist is not a “religious person” it is a theist. read more
Theists are generally resistant to your logical reasoning because they're starting from different premises. Vegetarians are generally resistant to your logical reasoning because they can refute it. ;) (But seriously, neither group is generally resistant to logical reasoning. read more