Our founders relied upon Blackstone and the English common law, not this Swiss person.
They depended on far more than Blackstone. And why would they rely on court cases from a judicial system they revolted against?
They incorporated the concept of English common law, not the decisions themselves.
It's sad that you're so narrow minded in your understanding that you have to twist history to exclude some of the greatest minds of political philosophy, like Locke, Calvin, Hobbes, Vattel and many many others, just to fit your preconceived notions.