Why don't they blame on the oppressive country making the whole south american continent poor?

Nobody made south America poor; like every continent poverty was the natural state. South America just did a worse job at developing the infrastructure, rule of law, institutions and culture necessary to lift itself out of poverty as fast as north America.

With the exception of Argentina, which after WW2 was one of the richest countries in the world, but through bad political choices ended up impoverishing itself.

That quite a wild thing to say about an entire continent whose politics were almost completely manipulated by some 2 powerful countries after WW2.

> which after WW2 was one of the richest countries in the world

Oh yeah, I wonder what changed then.

Idle thought - I wonder how much the German contingent had to do with these choices.

If you have any desire to not be remarkably ignorant of 20th century history, I’d suggest spending a few minutes reading about who in North America did a bunch of coups and otherwise created the conditions for a lack of rule of law in South America.

It's entirely their fault if the CIA keeps giving money to terrorists. No other country is involved with that.

What does South America have to do with Cuba? And why do you assume that South America is poor? Much of South America enjoys a high standard of living, and is nowhere near as poor as most of Central America, for example, and definitely much richer than Africa.