This is a short extract from a longer interview, one of several, given by Soviet Union KGB defector Yuri Bezmenov with G. Edward Griffin. In other interviews which can be found on most internet video sharing platforms, Bezemenov explains ideological subversion process in detail.

Philosopher Allan Bloom, PhD describes it in his book as The Closing of the American Mind: How Higher Education Has Failed Democracy and Impoverished the Souls of Today’s Students.

G. Edward Griffin and Yuri Bezmenov

“Freedom of the mind requires not only, or not even specially, the absence of legal constraints but the presence of alternative thoughts. The most successful tyranny is not the one that uses force to assure uniformity but the one that removes the awareness of other possibilities.”
― Allan Bloom, The Closing of the American Mind

For example:

“Woke” censoring, banning people and subject on social and mainstream media

Tearing down, defaming or removing statues, street names, painting, etc.

Burning books, erasing or changing historical records

Converting churches and synagogues into mosques

obscurantism

moral and cultural relativism

political correctness

identity politics

social justice

fear as a political device