Fifteen years ago Venezuela was run by right wing politicians who kept in line with the US. It was the fifth biggest oil producer in the world. However all the oil money went to a very small percentage of the population. Caracas was one of the most dangerous cities in South America crime-wise, largely because of the massive disparity between the haves and have-nots. You may remember the floods that washed away shanty towns in the early 2000s.
Along came Chavez and tried to improve matters, redistribute wealth etc. The US pulled the plug and they ended up with even worse conditions, except that this time even the small wealthy minority weren’t happy.
Chavez is gone now and as far as I can see things have just got worse.
In many ways Chavez was trying to do what needed doing and I can see why Corbyn supported him but the trouble with any country going down a popular socialist route is that they will have to make it on their own, which is pretty much impossible.