I hear this argument so often from every second Bob and Steve dawwwn da pub.
Religion has never caused war, land has never caused wars, resources have never caused wars. It's human ego that causes war.
There is no evidence that any apparently religion-based wars were actually about religion and not about resources or land or something else.
The world would be a degenerate place without spiritual values. The British Empire and European Enlightenment were founded on a solid bed of Christianity. Our legal systems, great works of art and architecture, our moral civilisation, grew from a religious soil.