The Psychogenetic Fallacy occurs when an attempt is made to psychoanalyze a person who holds a certain view and this psychoanalysis is used as a reason that the person’s view is not correct. This is a combination of the genetic fallacy and an ad hominem fallacy. It is failure to deal with the issue at hand.
“You are a Christian because you like the idea the God takes care of you and is watching over you. Therefore, there is no God.”