[3] After the war, he spoke at student demonstrations, urging opposition to the Nationalist government and provoking criticism from the church in Canada.

This led to his resignation from the ministry and the mission on May 5, 1946 after the United Church of Canada gave him an ultimatum to either modify his public statements or quit.

[2] In August 1946 Endicott was invited to help write a constitution for the new League for the Protection of Human Rights in China.

He continued his support for the Chinese Communist Party by giving lectures and publishing the Canadian Far Eastern Weekly which had 5,000 subscribers at its peak.

His charges led him to be vilified in the Canadian press as "public enemy number one" and he was censured by the United Church for his support of Mao Zedong and the Chinese Communists.

In 1982, the United Church extended a formal apology to Endicott for having denounced him three decades earlier,[2] acknowledging that it had caused him "much personal hurt and anxiety".

[8] Though ambivalent about the policies of Deng and initially supportive of the Tiananmen Square protests of 1989, Endicott was sympathetic to the Chinese government's dilemma in dealing with what he came to see as a counterrevolutionary movement.

[5] Arguing that there was an attempt to overthrow the Chinese government, Endicott stated, What took place was a minor civil war.

The army's action in upholding the constitution probably prevented the capitalist roaders from really making an attempt to take over by military force.

Endicott agreed to leave the organization rather than stop publication of the newsletter or withdraw his support for China in its conflict with the Soviet Union.

[2] He founded the Canada-China Society shortly after leaving the Canadian Peace Congress and publicly broke with the Soviet Union.