But that's not what global south socialism is. If there is a global project to establish the sovereignty of exploited and impoverished nations, first with a combined effort of the national bourgeoisie with the workers and the peasantry, socialists across the world should support it. That's what's already happened and you can clearly see that the power the national bourgeoisies gained in the global south after throwing off the yoke of colonialism was either itself significantly weakened through socialist revolution, or it grew to the point of facilitating continued extraction as neocolonies. In the case of the nations that had socialist leadership curb the power of the new bourgeoisie (Cuba, Nicaragua, Burkina Faso, Vietnam, Tanzania, etc) none of them were able to simply do away with capitalist exploitation entirely. Demanding that they do such a thing is ahistorical, and it misses the point of their revolutions as being, principally, about taking political power into the hands of the people and away from colonizers. Should all of those projects be condemned because they didn't have a time machine to jump 800 years in the future to the point where they could avoid all those problems entirely?

It's completely non-actionable and facile to apply criticism of every socialist nation on the basis that some form or another of exploitation still exists inside of them. If there was a way to have the productive forces to get everyone fed, housed, and healed overnight then sure, you're totally right! It's abhorrent that some workers in Cuba work in private businesses that make profit off their surplus value! They should simply abolish the value-commodity form!