In 'Liberal Christian' circles - which include most of the leadership of most of the largest and most powerful Christian churches it is a high status action to express, to discuss and elaborate, one's 'doubts' about Christianity - for example doubts about theology, doctrines and ethics; about the nature and reality of God, the divinity of Christ, the truth of miracles, prophecies, the Virgin Birth; the truth of the Bible and the meaning of key passages (especially relating to sex and sexuality)...
High ranking Christian leaders are eager to describe their doubts about such matters; and such doubts are status-enhancing in The World.
But to discuss doubts concerning the core tenets of modern Mainstream Leftist Politics is a strict taboo - such doubts are status-threatening in The World, and they are avoided.
So we do not hear mainstream Christian leaders expressing doubts about the value of the abolition of slavery, we do not hear them discussing racial differences, we do not hear them challenge the value of overseas aid - or describe its multiply destructive effects, nor do they question the validity of policies aimed at promoting multiculturalism and 'diversity'; nor do they even dissent from the official doctrines concerning the theory that anthropogenic carbon dioxide is (for sure) going to cause net-harmful global warming - but that this outcome can be prevented by immediate international pluvial action: this theory is regarded, in practice, by high status powerful Christian leaders - as an undeniable fact of life: far less open-to-doubt than the divinity of Christ.
(Leftism is, I believe, fundamentally anti-Christian. Nonetheless, given that all political
views are highly imperfect, distorted, simplistic, pragmatic phenomena -
it certainly is possible to be a Leftist and a real Christian - so long
as it is the Leftism that is contingent and doubtful - not the Christianity.).
The reason for this behaviour of Christian leaders isn't complex nor difficult to understand - it is simply that these leaders are not fundamentally Christians; but instead their fundamental belief is in Leftist politics. They are solid socialists who are Christianized (to a greater or lesser extent), but not solid Christians.
We know this because they doubt Christianity, but they do not doubt Leftism. They are 'tolerant' (which means they do not care) about Christian heresy, apostasy, or decline, or imminent extinction in The West; but they are zealous and fanatical Leftists who try their hardest to prevent political dissent among their ranks: membership of 'right wing' parties or advocacy of anti-Left policies is not tolerated, and is excoriated from the highest levels; and is either explicitly forbidden (eg membership of some legal political parties is grounds for non-appointment or dismissal), or else such people are covertly sanctioned and excluded.
Leftism is the main enemy of Christianity. but this is not because the political Right is correct; it is because the majority of self-identified Christians - and almost all the leadership - are dishonestly fundamentalist Leftist activists whose Christianity is a fake and a lie.
Whether mainstream self-identified-Christian leaders themselves acknowledge or deny this fact concerning their fundamental beliefs and their contingent beliefs is neither here nor there, it is unambiguously and undeniably revealed by their preferences and actions - most clearly by the nature of their doubts.