Social Inoculation (aka Nazirene Theology)

From Wikipedia -

Inoculation Theory was developed by social psychologist William J. McGuire in 1961 to explain more about how attitudes and beliefs change, and more importantly, how to keep original attitudes and beliefs consistent in the face of persuasion attempts.

Inoculation theory states that to prevent persuasion it is necessary to strengthen preexisting attitudes, beliefs, or opinions. First, the receiver must be warned of an impending attack. This establishes threat (or a recognition of vulnerability) and initiates defenses to future attacks.
Therefore, the idea is that when weak argument is presented in the inoculation message their process of refutation will prepare for stronger persuasion later. It is critical that the attack is strong enough to keep the receiver defensive, but weak enough to not actually change those preexisting ideas. This will hopefully make the receiver actively defensive and allow them to create arguments in favor of their preexisting thoughts. The more active the receiver becomes in his or her defense the more it will strengthen their own attitudes, beliefs, or opinions (McGuire, 1964).