If a flying bird is caged for long, it loses its ability to fly. If the door of its cage is unfastened accidentally, it thinks, “What benefit will I derive flying in the distant blue sky? Let me pick up seeds, sitting on the perch of my little cage.”
Now, if people have been educated in a distorted manner and their minds crippled, they are unable to stand independently. If their minds have been molded by propaganda for a long period, they cannot utilise the opportunity for freedom even if it presented to them.