Extreme poverty halved under Chavez. The most vulnerable citizens in Venezuela (poor, indigenous Venezuelans) are the strongest supporters of the socialist government.
Venezuela has had economic problems, relating to their over-reliance on oil revenue (which has always been a problem and has nothing to do with socialism), and bad monetary policy (which again, is not at all related to socialism)
Meanwhile, the US continues to levy harsher sanctions aimed at forcing regime change (ie, so their country is run by a puppet state friendly to US capital), which only makes the crisis worse.