I apologise for how badly written the OP is and some of you will understand the need for the circumlocutions.
I picked up a promising reference to Repressive Tolerance from the comments of the thread that contains the photographs of the emails and the essay is worth reading (123 pgs):
THIS essay examines the idea of tolerance in our advanced industrial society. The conclusion reached is that the realization of the objective of tolerance would call for intolerance toward prevailing policies, attitudes, opinions, and the extension of tolerance to policies, attitudes, and opinions which are outlawed or suppressed. In other words, today tolerance appears again as what it was in its origins, at the beginning of the modern period--a partisan goal, a subversive liberating notion and practice. Conversely, what is proclaimed and practiced as tolerance today, is in many of its most effective manifestations serving the cause of oppression.
...
Tolerance is an end in itself. The elimination of violence, and the reduction of suppression to the extent required for protecting man and animals from cruelty and aggression are preconditions for the creation of a humane society. Such a society does not yet exist; progress toward it is perhaps more than before arrested by violence and suppression on a global scale. As deterrents against nuclear war, as police action against subversion, as technical aid in the fight against imperialism and communism, as methods of pacification in neo-colonial massacres, violence and suppression are promulgated, practiced, and defended by democratic and authoritarian governments alike, and the people subjected to these governments are educated to sustain such practices as necessary for the preservation of the status quo. Tolerance is extended to policies, conditions, and modes of behavior which should not be tolerated because they are impeding, if not destroying, the chances of creating an existence without fear and misery.
www.marcuse.org/herbert/publications/1960s/1965-repressive-tolerance-fulltext.html