"‚ÄúSoldiers with minority religious beliefs and atheists often feel like second-class citizens when Christianity is seemingly officially endorsed by their own base"
God is the "second class" citizen of the western nations, especially when Satan is in charge.
Jesus states:- Jn 15:18 If the world hate you, ye know that it hated me before it hated you. 19 If ye were of the world, the world would love his own: but because ye are not of the world, but I have chosen you out of the world, therefore the world hateth you.
Psalm 14 and 53 is correct the atheist is a fool. And who are we to argue with God!
Prov 29:16 When the wicked are multiplied, transgression increaseth: but the righteous shall see their fall.