For this kind of christian behavior, education is probably completely out of the question and counterproductive effort. This is the only hope buddhists have of overcoming unwanted friction with christians in general:
The Four Sublime States Contemplations on Love, Compassion, Sympathetic Joy and Equanimity
by Nyanaponika Thera
"These four attitudes are said to be excellent or sublime because they are the right or ideal way of conduct towards living beings (sattesu samma patipatti). They provide, in fact, the answer to all situations arising from social contact. They are the great removers of tension, the great peace-makers in social conflict, and the great healers of wounds suffered in the struggle of existence. They level social barriers, build harmonious communities, awaken slumbering magnanimity long forgotten, revive joy and hope long abandoned, and promote human brotherhood against the forces of egotism.
The Brahma-viharas are incompatible with a hating state of mind, and in that they are akin to Brahma, the divine but transient ruler of the higher heavens in the traditional Buddhist picture of the universe. In contrast to many other conceptions of deities, East and West, who by their own devotees are said to show anger, wrath, jealousy and "righteous indignation," Brahma is free from hate; and one who assiduously develops these four sublime states, by conduct and meditation, is said to become an equal of Brahma (brahma-samo). If they become the dominant influence in his mind, he will be reborn in congenial worlds, the realms of Brahma. Therefore, these states of mind are called God-like, Brahma-like."
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The Practice of Loving-Kindness (Metta) As Taught by the Buddha in the Pali Canon Compiled and translated by Ñanamoli Thera
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But whoever walking, standing, sitting, or lying down overcomes thought, delighting in the stilling of thought: he's capable, a monk like this, of touching superlative self-awakening. § 110. {Iti 4.11; Iti 115}