You seem desperate to make something out of this, but you're grasping at straws. Just because an individual makes as argument in court (in a dismissed case, no less) doesn't mean that it's a widespread belief. Would you apply the same logic to any argument made by a lawyer?
Not nowadays, but I believe they were held to higher standards in 1847. Notwithstanding that, i've read so many quotes that reinforces that lawyer's argument I am tired of looking at them. (At least for now.)
I have decided to compile a chronology of quotes regarding this issue.( plus the links where I found them.) There are a LOT of quotes supporting the Citizen parent argument, and I just don't see how so many people in History who ought to know what this stuff means could get it wrong. I know of only two quotes that I would regard as supporting the jus soli argument, (one of which I just have the word of a poster is an accurate quote) and even one of those invokes jus sanguinus.
I think the problem many people have in understanding this issue is the inability to see the big picture in context. A series of Historical quotes, in sequence, and referenced to who said them and of what importance they were, might make the big picture easier to understand for those that simply can't seem to get it.
This piecemeal stuff just doesn't seem to be getting the point across.