@awoelt,
Science is treated as religion when it is used to justify or explain our outlooks, ethics, and attributes, as it frequently is by social darwinists, evolutionary psychology, etc. This account of human attributes, insofar as it is understood as a rationale and sufficient explanation for human nature, serves some of the same roles as religious mythologies did in earlier times. This is also evidenced by the fact that to question the scientific view is to be viewed as being a creationist, even if one has no affiliation with such views.
There are many popular antireligious writers who turn out books which claim to explain spiritual and religious phenomena in scientific terms and argue that any kind of religious attitude has been outmoded by science. Such writers include Victor Stengl, Daniel Dennett, Richard Dawkins, Jacques Monod, and many others.