How does Oppenheimer feel after the use of the first atomic
bomb?

After the war, Oppenheimer took steps to prevent such a future. He began working with the U.S. Atomic Energy Commission to control the use of nuclear weapons. In 1949, when Truman approached the commission about creating a hydrogen bomb, Oppenheimer opposed it.  But Oppenheimer's resistance ended up costing him his job

assuming that by westerners you mean americans. that they were mean and controlling and abusive to its peasants.

explanation:

well that depends on how deep the hole is. you'd first go through te crust of the earth, then the upper mantle, then the lower mantle then the outer core, then the inner cor then you'd be stuck in the core to melt.