So they read up on Islam, you claim.
But they really did not comprehend its insidious nature and its future danger toward the country they founded.
They understood very well, much better than our modern leaders.
“Between these two religions, thus contrasted in their characters, a war of twelve hundred years has already raged. That war is yet flagrant; nor can it cease but by the extinction of that imposture”
Know Islam, No Peace - No Islam, Know Peace
“He poisoned the sources of human felicity at the fountain, by degrading the condition of the female sex, and the allowance of polygamy; and he declared undistinguishing and exterminating war, as a part of his religion, against all the rest of mankind. THE ESSENCE OF HIS DOCTRINE WAS VIOLENCE AND LUST: TO EXALT THE BRUTAL OVER THE SPIRITUAL PART OF HUMAN NATURE.”
J.Q. Adams had a far better grasp on the true nature of Islam than George W. Bush did, that’s for sure.