How do we know that bolivar's political goals for South America were not achieved?

We can know that Bolivar's political goals for South America were not achieved since South America is not a unified country, but it is formed by 13 separated nations.

Explanation:

Simon Bolivar was the one who most strongly proposed an alternative of political organization to overcome the territorial fragmentation of the former Spanish colonies. The proposal of the Venezuelan consisted in the creation of a political unit that grouped all the territories that had been part of the Spanish empire in the Americas.

Southamerica is divided in countries.

Explanation:

The political goal of Simon Bolivar for south america was the great effort to create the Great South American Country, and with this unify all of the southamerican continent under one government and expell all of the foreign invasors and colonists, giving the power to the local residents and giving americans the power to reign themselves.