Esequibo is a region that used to belong to Venezuela, when Guyana was under British rule they stole it, they have been reclaiming it for as long as they exist under different circumstances but always the imperial powers denied it and kept it there. Recently it was discovered that Esequibo holds the biggest oil reserves in the world, so reclaiming them has become even more important. It is the Venezuelans' Malvinas.
The narrative is far beyond “imperialist Venezuela”. Exxon is claiming oil reserves within Venezuelan maritime borders, its neighbour is an American puppet regime, and America is looking to establish a military base right next door.
Last but not least, Venezuela is being forced to accept opaque “electoral reforms” in return for an easing of sanctions.