Idolization, Personality craze - Doesn't sound right.
It guess you are referring to:
Cult of personality arises when an individual uses mass media, propaganda, or other methods, to create an idealized, heroic, and at times, worshipful image, often through unquestioning flattery and praise.
- Sociologist Max Weber developed a tripartite classification of authority; the cult of personality holds parallels with what Weber defined as "charismatic authority". A cult of personality is similar to hero worship, except that it is established by mass media and propaganda usually by the state, especially in totalitarian states.
I would rather say adulation: extreme admiration; excessive devotion to someone