Obviously not…But, liberals don’t like talking about G-D because it makes their diseased obsession with moral equivalence, really hard to maintain as a worldview. Here’s some Founding Father’s talking about Thanksgiving and G-D.
Virginia Governor Thomas Jefferson, in 1779:
[I] appoint … a day of public Thanksgiving to Almighty God … to [ask] Him that He would … pour out His Holy Spirit on all ministers of the Gospel; that He would … spread the light of Christian knowledge through the remotest corners of the earth … and that He would establish these United States upon the basis of religion and virtue.
President George Washington’s first federal Thanksgiving proclamation in 1789:
Whereas it is the duty of all nations to acknowledge the providence of Almighty God, to obey His will, to be grateful for His benefits, and humbly to implore His protection and favor.… Now, therefore, I do appoint Thursday, the 26th day of November 1789 … that we may all unite to render unto Him our sincere and humble thanks for His kind care and protection.
President Abraham Lincoln, making Thanksgiving an annual national holiday in 1863, in the midst of the Civil War:
No human counsel hath devised nor hath any mortal hand worked out these great things. They are the gracious gifts of the Most High God, who, while dealing with us in anger for our sins, hath nevertheless remembered mercy.
It has seemed to me fit and proper that they should be solemnly, reverently, and gratefully acknowledged, as with one heart and one voice, by the whole American people.
Not a founding father, but William Jennings Bryan, “On Thanksgiving Day we acknowledge our dependence.”
“Almighty God, who hast given us this good land for our heritage; We humbly beseech Thee that we may always prove ourselves a people mindful of Thy favor and glad to do Thy will.”
President Franklin D. Roosevelt, Nov. 9, 1940
“As the harvest season draws to a close and our storehouses bulge with the bounty of the land, it is our desire to observe, in the custom and tradition of our forebears, a special day dedicated to giving thanks to God – a day on which to lay aside our daily tasks and cares and pay joyous homage to Him.”
President John F. Kennedy, Nov. 13, 1964