Dear Joseph H Sadove,
I apologize for the late reply. Thank you for taking the time to read my work and thank you for sharing your thoughts on the subject.
The fact that Bitcoin is used by criminals does not take away the validity of it as a means of value transfer.
Referring back to an example I made, the invention of gunpowder brought about no shortage of pain, suffering, death and despair, but at the same time gave us infrastructures that benefited human society greatly.
Trying to decide if an invention is immoral or not misses the point, more important I would suggest whether an invention fulfills a utility.