Did Obi Wan give up on the force when Anakin turned?

Rating: 7/10 (16 December 2017)

Throughout the entire movie I kept waiting for my Luke, the Luke of my childhood, my hero, to return. Luke was always bold, always hopeful, always caring, but alas it was not meant to be. Here are some questions I have, that I have already seen asked here, but they need to be heard:
1) Why the build up of Rey's parents, if they were nobody?
2) Why the build up of the other parts of the Force, if they were not to be explored
3) Who was Snoke, and why does no one seem to care in the Star Wars Universe?
4) But the only questioned that mattered when I left the theater was "where was Luke" this was certainly not him. I would understand if he was upset about Kylo Ren, but to have given up entirely? To show a defeatist attitude about even the attempt of bringing the light to bear. This was someone who was pretending to be Luke, someone who did not know anything about who Luke was and what he was made of. Did Obi Wan give up on the force when Anakin turned? No....and neither would Luke...