Why would philosophers care about religion? Are they on the same
  spectrum and competing for the same spot? == Ok, so they are
  logically interchangeable? What might be other examples of
  belief systems other than philosophy and religion that are
  interchangeable (if not fully equivalent in content)? == [answer
  I got was: philosophy and religion are exhaustive] == Ok. I can
  work with that. Yes, I mean interchangeable in a human mind and
  can be changed one for another. Now, given that: Would you
  consider Theology as a mixing point between the two, and perhaps
  having a favorite philosopher/philosophy as another mixing
  point? By mixing points, I mean places where you see aspects of
  religion and philosophy in ways where the differences can
  _appear_ fuzzy rather than binary? == [I say this not to imply
  anything: I'm just thinking aloud as I go. I don't have
  preconceived notions (that I'm aware of) with this - just
  walking through it logically to see where it goes. ==