The Founders did indeed consider abortion when they proclaimed that people are created equal, not born equal, and they are then endowed with a right to life.
"We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness."

Psalm 139:14 ... I will praise thee; for I am fearfully and wonderfully made: marvellous are thy works; and that my soul knoweth right well.
Jeremiah 1:5 ... Before I formed thee in the belly I knew thee; and before thou camest forth out of the womb I sanctified thee, and I ordained thee a prophet unto the nations.
Isaiah 44:24 ... Thus saith the Lord, thy redeemer, and he that formed thee from the womb, I am the Lord that maketh all things; that stretcheth forth the heavens alone; that spreadeth abroad the earth by myself; ❤