Christian philosopher J. P. Moreland’s Scientism and Secularism: Learning to Respond to a Dangerous Ideology makes clear he doesn’t like it:
Rigid adherence to scientism―as opposed to a healthy respect for science―is all too prevalent in our world today. Rather than leading to a deeper understanding of our universe, this worldview actually undermines real science and marginalizes morality and religion.
In this book, celebrated philosopher J. P. Moreland exposes the selfdefeating nature of scientism and equips us to recognize scientism’s harmful presence in different aspects of culture, emboldening our witness to biblical Christianity and arming us with strategies for the integration of faith and science―the only feasible path to genuine knowledge.
He has said,
Strong scientism is the view that some proposition or theory is true or rational if and only if it is a scientific proposition or theory. That is, if and only if it is a well-established scientific proposition or theory that, in turn, depends upon its having been successfully formed, tested, and used according to appropriate scientific methodology. There are no truths apart from scientific truths, and even if there were, there would be no reason whatever to believe them… [W]eak scientism allows for the existence of truth apart form science and are even willing to grant that they can have some minimal, positive rationality status without the support of science. But, science is the most valuable, most serious, and most authoritative sector of human learning. If strong scientism is true, then theology is not a rational enterprise at all and there is no such thing as theological knowledge. If weak scientism is true, then the conversation between theology and science will be a monologue with theology listening to science and waiting for science to give it support. For thinking Christians, neither of these alternatives is acceptable. “J.P. Moreland on Strong Scientism” at After All
See also: J. P. Moreland on why minds could not simply evolve somehow