America wants to start another front for the rich oil in Venezeula as much as the riots may be due to food issues and security alongside collapsing oil prices the idea of a successful socialist state does not sit well with American interests hence they try to destroy it whenever the opportunity presents itself.

That said I would be hard picked to name a country where American interventionism really helped build the country in the long run without leaving a big mess with exception to Japan cause Russia was nearby + a containment of China and Mao policy was needed although it failed in the end and only Taiwan remained.

I am fairly sure that besides the gun manufacturers we all do not want to see another Libya, or puppet dictatorship like the good old days in the 70s and 80s in Latin America and the Pinochet's for all even if the socialist experiment is not doing well. It's worse in civil war.

That said it sucks you need to go to Colombia and sell Bolivar there for food kind of reversed when people went to Venezuela to steal the cheap gas and bring it across the border and food either way also heard 1oz of silver or perhaps gold is as good as a few months worth of food not sure how accurate that statement is though sounds pretty BS in food scarcity commodites like food should still hold a premium feed your belly or have a lump of metal unless they meant people went to Colombia to trade it. So ya some BS in the news too.
https://www.youtube.com/watch?v=w-X-63hZP5M
http://www.thedailyeconomist.com/2016/08/why-do-you-need-to-own-physical-gold.html