I think you underestimate Maduros support, this was not an Assad style house of cards with no civilian support. Maduro may have not won the last election but he definitely didn’t lose by the margins the opposition was saying either, the fact that he allowed for elections in the first place shows he thought he could win, so he probably has 30-40% support. Combine that with the opposition being backed by the US and being forced to accept oil privatization which will anger the poor Venezuelans who rely on oil revenues for what’s left of the Chavez welfare state, and the opposition to whatever US regime is put in will probably be greater than 50% which combined with the landscape of Venezuela is a recipe for Vietnam 2.