How do get a dog who is scared of human contact to become more comfortable?

Poorly bred, genetically deficient, that maybe controlled by proper training/socialization but never completely cured.

Not enough early and ongoing socializing with other people.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.