A bunch of rich white slave-owners wrote the rules over the space of a few months in Philadelphia.

One of the rules is that it's damn near impossible to amend the rules. It hasn't been done in a half century. (Setting aside one oddball originally written by those rich white guys but left in a drawer by accident.)

By near definition, the lawmaking process mostly works on account of interested parties. There aren't a lot of issues that can get enough support merely by sheer mainstream pushback. That's why organizations spend time spreading awareness and lobbying (as well as coporate billionaire companies).

It'd be much nicer if privacy was one of those mainstream topics. But that's not the case thus far. It's mostly propped into legislature by smaller organizations.