The Founders were attempting to attain the “rights of Englishmen” and their legal code was based upon the laws of England which defined those rights. There was no massive overturning of traditional legal codes as with the French or Russian Revolutions.
They were defending rights being taken away in their view.
The "Rights" of Englishmen included having their American born kids press ganged into the Royal Navy.
That's what being a subject and the doctrine of jus sanguinus means. The Crown owns you and all your descendants.
Americans are not subjects. We are citizens.