Are you claiming there is no evidence for the concept of causality? and that any discussion of existence or identity is the province of faith, not reason? If some people replace metaphysics with religous idiocy, that does not invalidate the field as such -- the same applies to all fields of rational inquiry, from physics to psychology.

I subscribe to the evidence of the senses, logic, and science. If you think any discourse about such topics belongs to the supernatural and religious, that's your problem, not mine.