One reason for the Left to be strong in organizations that heavily influence the minds of the population may be the idea "The Long March Through the Institutions", associated with Rudi Dutschke (in the picture). This is what Grok had to say about this: 

"The Long March Through the Institutions" is a phrase that originates from the New Left student movements of the 1960s, particularly associated with German student activist Rudi Dutschke. The concept suggests a strategy for achieving social change not through violent revolution but through gradual infiltration and transformation of existing societal structures. 

The term was inspired by Mao Zedong's Long March, a military retreat undertaken by the Red Army of the Communist Party of China from 1934 to 1935. Here, "Long March" symbolizes a long, arduous journey towards an ideological goal.

Dutschke used this metaphor to describe how the New Left could achieve cultural and political change in Western societies, which were seen as too entrenched in capitalist structures for a traditional revolution to succeed.

The strategy involves activists entering and working within established institutions like universities, media, political parties, and cultural bodies to shift their ideologies and practices over time.

The aim is to "capture" these institutions by changing them from within, thereby influencing society's cultural and political norms towards leftist ideologies without overt confrontation.

Key Areas of Influence:

1. • Education: By influencing curricula, educational policies, and academic discourse, activists could shape future generations' views.

   • Media: Controlling or influencing media narratives can sway public opinion and cultural perceptions.

   • Government: Through participation in political processes, activists could influence policy-making and governance.

   • Culture: Influencing art, literature, and other cultural outputs to reflect and promote new values.

Grok gave the following sources: 

• The long march through the institutions; Wikipedia.

• The long march through the institutions; Global Comment.