Why does Winston believe that parsons never be vaporized?

Winston believes that Parsons, his neighbor, will never be vaporized because he embodies the Party's values and is a fervent supporter of its ideology. Parsons is depicted as a loyal Party member who is oblivious to the oppressive nature of the regime, often engaging in activities like participating in the Youth League and enthusiastically promoting Party Propaganda. His blind loyalty and conformity make him a valuable asset to the Party, thus protecting him from being targeted for vaporization. Winston sees Parsons as a representation of the average citizen, whose unwavering allegiance keeps him safe in a totalitarian society.