Yea that's a fair point- but personally I don't buy Kerry's position on this. Their heavy involvement in Venezuela seems to suggest it's still a priority, and whilst the rhetoric is that the Munroe doctrine is over I doubt very much American can leave the hemisphere to its own devices given its own paranoid. If Trinidad fell to a coup tomorrow you'd get boots on the ground the day after - we matter because we are 60% of the USA's LNG imports. Mexico is a strategic concern today, and heavy cross-boarder flows in government money suggest they too are an important concern. Roughly 20% of the USA's imported crude oil comes from Venezuela (10%), Colombia (4%), Brazil and Ecuador (2%) (rounding errors). For refined petrol, it's roughly 2.9%, 2.7% 2.6%, 1.8% and 1% from Chile, Colombia, Brazil, Peru and Argentina. Brazil, Chile, Ecuador and Peru also make up 3.2%, 1.8%, 1.1% and 0.9% of "petrol gas" imports.
Basically I think Latin America is too important for America not to consider a strategic priority. We can disagree on this happily I think.