Not true at all, they just have to at least engage in struggle against the USA. The US does not have the military capacity to occupy and control the entire American continents.

Look at the general strikes in Bolivia that are causing the neoliberal government to collapse. America can’t do anything about it except complain and sanction, and Bolivia is a tiny country compared to others.

Venezuela was already rotting from the inside and the revolution was never completed, so there were many powerful comprador factions with capital and state influence. A united workers movement throughout South and Central America could not be stopped by the failing empire. It only took one spec op to completely takeover the Venezuelan government, that shows they were weak and on the brink already. Incomplete electoral revolutions are weak though, as they leave powerful reactionary opposition factions in tact that the US can leverage. The revolutions will need to be complete and violent.