No it wasn't and it never did.

The constitution itself allows for a very small group of individuals to control the entire country, from the first moment it was written.

It was never truly reviewed to allow a proper redistribution of voting power throughout all the states and it still allows for indirect election of the most powerful state figure, where it should instead by directly elected by popular vote.

The gerrymandering, the filibusting, two chambers system, common law system, etc.

The american government was never created to be a proper one; it was an emulation of the english system but even more botched.

The document itself should have been thrown in the trash and a new one written, the moment the civil war broke. And again it should had been trashed when the market crash happened.

There is only so much an ammendement can do.