You state that the majority of clergymen did not consider him a Christian (far from it), and then quote one person.<quoted text>
You seem to be "generalizing" that most of the Christian clergy of Washington's time were certain of his Christian beliefs. Nothing could be further from the truth. Bishop White was considered the father of the Protestant Episcopal church of America, and, Washington, with his wife, attended churches in which Bishop White officiated. In a letter to Rev. B.C.C. Parker of Massachusetts, dated Nov. 28, 1832, in answer to some inquiries respecting Washington's religion, Bishop White wrote:
"His behavior [in church] was always serious and attentive, but as your letter seems to intend an inquiry on the point of kneeling during the service, I owe it to the truth to declare that I never saw him in the said attitude.... Although I was often in company with this great man, and had the honor of dining often at his table, I never heard anything from him which could manifest his opinions on the subject of religion....Within a few days of his leaving the presidential chair, our vestry waited on him with an address prepared and delivered by me. In his answer he was pleased to express himself gratified by what he had heard from our pulpit; but there was nothing that committed him relatively to religious theory" ("Memoir of Bishop White," pp. 189-191; Sparks' "Life of Washington," Vol. ii., p. 359).
In a letter dated Dec. 21, 1832, Bishop White also wrote to Rev. B.C.C. Parker:
"I do not believe that any degree of recollection will bring to my mind any fact which would prove General Washington to have been a believer in the Christian revelation..." ("Memoir of Bishop White," p. 193).
Clergymen who affirmed his Christianity:
Rev. Lee Massey (Washington's early Pastor & family friend)
Rev. Parson Weems (Washington's later Pastor & family friend)
Rev. Nathaniel Randolph Snowden, friend of Isaac Potts;
Rev. Dr. Timothy Johnes, Presbyterian Minister of Morristown and Valley Forge, served George Washington Communion;
Rev. Samuel H. Cox also verifies Washington taking Communion and says that "to all Christians, and to all Americans, it cannot fail to be acceptable."
Rev. General Peter Muhlenberg, a Lutheran pastor who became a military officer serving personally under George Washington, witnessed George Washington praying in a stable.
The Rev. Mr M'Guire,'The Religious Opinions and Character of Washington,' published in 1836, verified the Valley Forge Praying by several sources.
Rev Gano the Princeton Alumni Baptist Minister and Revolutionary Chaplain, who Baptized Washington during the war. He is the one Washington called upon to pray and officially end the Revolutionary War
Rev. Origen Bacherer, insisted that Washington was a communicant,
By the way, what do you get out of Washington's writings (since you can't visually judge his behavior) that cause you to believe that he wasn't an evangelical/fundamentalist Christian (one who believes that the entire Bible is the inspired Word of God)?