The social class that was excluded from writing the constitution was the lower class. Since they weren’t wealthy. In opening paragraph, it clearly states “instituted for the defense of the rich against the poor”. The social class that wrote the constitution was the upper class, since they are rich and powerful.
I feel it is different. Back then there was a working class but I felt it fell more on rich or poor. Those whom were rich had wealth from previous ancestors. The poor ones also worked but made it enough for ends to meet.
The people who wrote the constitution were afraid of Democracy because they knew it would become a country where they would elect the person in power. As they say “someone for the people and by the people”. It would no longer be a rich person making their own rules, instead the country would want to make it’s own choices, as far as willing to rebel and go against the rich.