Hensley was less isolated in some other causes he took up in the 1920s and 30s. He was one of many wary of the ultra-liberalism of the Modern Churchmen's Union. In 1934, he was among the senior clerics who censured Dean Dwelly for inviting a Unitarian to preach in Liverpool Cathedral and Bishop David for permitting it. He was critical of American evangelism as practised by Frank Buchman and the Oxford Group. Henson wrote of Buchman's "oracular despotism" and "the trail of moral and intellectual wrecks which its progress leaves behind." Henson was critical of one of his clergy, Robert Anderson Jardine of Darlington, for conducting the wedding ceremony in France of the Duke of Windsor to a divorced woman, contrary to the doctrine of the church. Henson was in a minority of senior clergy in speaking out against the dictators of the Axis powers. He condemned Nazi anti-Semitism, Mussolini's invasion of Abyssinia, appeasement and the Munich agreement.