Among many other things, electricity stopped working in any reliable fashion, leading to major issues internally.
Electricity stopped working because of decades of corruption of the Chavez / Maduro Regime, which forcibly took over the electrical grid and installed corrupt officials. No matter how much money Chavez pumped into the energy grid, it was all wasted in corruption.
The people who knew how to run the grid were then replaced by Maduro (albeit yeah, they were corrupt but… they at least knew how to run the system), and then shit really started to crazy because no one knew how to run the grid anymore and rolling blackouts became regular.
Lather rinse repeat for every other element of society. Remember that Venezuela is an oil state with plenty of energy reserves. They have plenty of chemical energy, its literally just the lack of brain that’s collapsing their society right now.
Ironically, electricity was more reliable when the USA’s AES Corporation owned the Electricidad de Caracas. So ummmm… maybe we should have pushed for more US intervention on this particular issue.
From a USA perspective: the migrants include the energy specialists who used to run Venezuela’s energy. But are now frustrated at this situation to the point that they’re leaving the country. Its to our benefit to capture those talented individuals and integrate them into our society. So Venezuela’s loss can serve as our gain if we play our cards right.