​One of the great gifts that God has given to us is a mind, with the desire and the capacity for self-realization, self-reflection, and learning.
The focus of Christianity regarding learning is not so much whether it is formal or informal, but in subjecting all of our thoughts to God’s word; to viewing all aspects of life, education included, through the prism of the Christian worldview. Today, public education and many private institutions, especially at the higher levels, have become not only openly hostile to Christianity, but even to critical thinking, and while there is not one single commanded biblical model of education, many Christian parents have chosen, I think rightly so, to go the home-school route, which may be to a greater or lesser degree “formal,” but allows parents to be sure that their children’s education is submitted to God’s word.

​We promote unity and equality among all races, ethnicities, genders etc. by simply looking to God’s word and following it and encouraging others to do that as well.
The Bible assures us that all men (and women) are made in the image of God and are, because that fact alone, worthy of equal treatment and respect. Beyond that, we, in seeking to be imitators of God, are reminded that God is no respecter of person, and it is him that we serve; each in different ways, in the roles that God has given.

​Should they be allowed to? I do not see a good reason why not. But should they offer such comments, endorsements, and perspectives? That is not so easy to answer. While I cannot speak to the function or purpose of “spiritual leaders” of other religions, I can say that the task of Christian ministers is not a political one, but a spiritual one. Their comments should direct people to Christ, not to this or that candidate, cause, or party. Their endorsement is of Jesus Christ, his perspective is that of the Bible, regarding faith and life.
Yes, there are some moral positions that the church must comment on and speak out against, but it does so as an agent of righteousness, not of any political agenda.
Individual Christians can be involved in politics and make any political statements they would like, but the churches focus is the kingdom of God.