You'd be in good company. The Calvinist Framers of the Constitution would have left long ago, too.
"Those who intellectually contributed to the Constitutional convention were the Founding Fathers. .... Back then church membership was a big deal. In other words, to be a member of a church back then, it wasn't just a matter of sitting in the pew or attending once in a while. This was a time when church membership entailed a sworn public confession of biblical faith, adherence, and acknowledgment of the doctrines of that particular church.
Of those 55 Founding Fathers, we know what their sworn public confessions were. [excerpted] from: HERE
But don't confuse the modern-day "pop-culture" mainline Presbyterian, Episcopalian, Congregationalist churches with the ones extant in the days of the Founders. Today's mainline churches have been co-opted by the Marxist left.
Specifically, the 55 Framers (from North to South):
John Langdon, Congregationalist (Calvinist)
Nicholas Gilman, Congregationalist (Calvinist)
Elbridge Gerry, Episcoplian (Calvinist)
Rufus King, Episcopalian (Calvinist)
Caleb Strong, Congregationalist (Calvinist)
Nathaniel Gorham, Congregationalist (Calvinist)
Roger Sherman, Congregationalist (Calvinist)
William Samuel Johnson, Episcopalian (Calvinist)
Oliver Ellsworth, Congregationalist (Calvinist)
Alexander Hamilton, Episcopalian (Calvinist)
John Lansing, Dutch Reformed (Calvinist)
Robert Yates, Dutch Reformed (Calvinist)
William Patterson, Presbyterian (Calvinist)
William Livingston, Presbyterian (Calvinist)
Jonathan Dayton, Episcopalian (Calvinist)
David Brearly, Episcopalian (Calvinist)
William Churchill Houston, Presbyterian (Calvinist)
Benjamin Franklin, Christian in his youth, Deist in later years, then back to his Puritan background in his old age (his June 28, 1787 prayer at the Constitutional Convention was from no "Deist")
Robert Morris, Episcopalian, (Calvinist)
James Wilson, probably a Deist
Gouverneur Morris, Episcopalian (Calvinist)
Thomas Mifflin, Lutheran (Calvinist-lite)
George Clymer, Quaker turned Episcopalian (Calvinist)
Thomas FitzSimmons, Roman Catholic
Jared Ingersoll, Presbyterian (Calvinist)
John Dickinson, Quaker turned Episcopalian (Calvinist)
George Read, Episcopalian, (Calvinist)
Richard Bassett, Methodist
Gunning Bedford, Presbyterian (Calvinist)
Jacob Broom, Lutheran
Luther Martin, Episcopalian, (Calvinist)
Daniel Carroll, Roman Catholic
John Francis Mercer, Episcopalian (Calvinist)
James McHenry, Presbyterian (Calvinist)
Daniel of St Thomas Jennifer, Episcopalian (Calvinist)
George Washington, Episcopalian (Calvinist; no, he was not a deist)
James Madison, Episcopalian (Calvinist)
George Mason, Episcopalian (Calvinist)
Edmund Jennings Randolph, Episcopalian (Calvinist)
James Blair, Jr., Episcopalian (Calvinist)
James McClung, ?
George Wythe, Episcopalian (Calvinist)
William Richardson Davie, Presbyterian (Calvinist)
Hugh Williamson, Presbyterian, possibly later became a Deist
William Few, Methodist
William Leigh Pierce, Episcopalian (Calvinist)
William Houstoun, Episcopalian (Calvinist)
William Blount, Presbyterian (Calvinist)
Alexander Martin, Presbyterian/Episcopalian (Calvinist)
Richard Dobbs Spaight, Jr., Episcopalian (Calvinist)
John Rutledge, Episcopalian (Calvinist)
Charles Cotesworth Pinckney, III, Episcopalian (Calvinist)
Abraham Baldwin, Congregationalist (Calvinist)
Free will is an astonishing thing. That God would entrust it to us is a loving and dangerous and wondrous matter. We can open oursleves up to Him and harness our will to His, or we can drift off with our pride into oblivion. You are absolutely correct.
We must pray for the Episcopal church, especially for those who plainly are teaching morality that will lead many away from Christ. We must pray that none will be lost forever because of the false teachings now making a grand appearance. God bless you!