It's the other way around - the massive, profit-driven, ego/mind cult that American Christianity has morphed into could take many lessons from the Dalai Lama and Buddhism. And Jesus, whose teachings echo Buddha's in many particulars, would agree.
Our Western culture is steeped in the ego/mind and that "way" is out of control. The ego trys to stay in control and only produces resentmment, fear, anger and whole host of other negative by-products.
True freedom comes from the dimensions of peace found in your own inner space. To just BE.
Jesus would NOT agree that the gospel shouldn't be preached to Buddhists. Jesus also would not agree that Buddhism is a faith acceptable to God.