What is Jonas' father's attitude as he performs the release?

For Jonas' father, release is just a necessary thing.... a part of the job. He is genuinely gentle with the infant and speaks to him like he would any other.... his voice is comforting. In the end, however, taking part in the baby's release is simply a part of his job, he has no real compassion for the infant, nor does he feel that what he is doing is wrong. Jonas, however, disagrees.

He picked up the carton and carried it to the other side of the room. He opened a small door in the wall; Jonas could see darkness behind the door. It seemed to be the same sort of chute into which trash was deposited at school. His father loaded the carton containing the body into the chute and gave it a shove. "Bye-bye, little guy," Jonas heard his father say before he left the room. Then the screen went blank.

How would you describe Jonas's father's attitude during the release of the twin? Give an example to support your answer.