The U.S. accuses the government of Venezuela of being corrupt. It laments that some 2 million fled the country. But these phenomenons are largely consequences of the economic war it wages against the country.Sanctions can only achieve their purported purpose when the targeted entity can change its ways and thereby get sanctions relief. But the sanctions against Iraq, Iran, Syria and Venezuela were/are all intended to achieve regime change. The people in charge of these countries would have to kill themselves, or at least abolish their positions, to achieve sanctions relief. They have no incentive to do. Broad sanctions against a country make the people more dependent of their government. They allow those in charge to increase their power.
https://www.moonofalabama.org/2019/01/sanctions-are-wars-against-people.html