People who aren't looking for something to argue about see that the point of quoting said quote is simply to point out that one of the people responsible for our country's government didn't give it more than 20 years before that same government (that he helped set up) would have to be put in check by its own people.
Or do you read racism, bigotry and masochism? Character studies and the merits of an individual are where ad hominem arguments don't look stupid.
Did you read it yourself? Unless you can show that Jefferson led a rebellion by 1807, then he didn't believe it himself. So why are you quoting it to someone who doesnt live in your particular swamp and who regards Jefferson in much the same way he regards any other racist thug?