It seemed obvious to me that one could apply the oppressor-oppressed axis by noting that Castro was the oppressor and the Cuban people were the oppressed.
I need to clarify that the oppressor-oppressed axis is not about oppression per se. It is about classifying certain groups as inherently oppressed and others as inherently oppressors. A couple of generations ago, the Left would have considered manufacturing workers to be oppressed. Today American manufacturing workers (and former manufacturing workers) are treated as oppressors, because they are white. Meanwhile, very affluent people can be seen as oppressed, because of their skin color or sexual orientation.
In the case of Cuba, poor Cubans were granted the status of “oppressed,” and rich individuals and corporations had the status of oppressors. Castro, who personally accumulated hundreds of millions of dollars in net worth while he was dictator, was regarded as a friend of the oppressed because the government provided the health care system.
When it is applied appropriately (for example, during the Civil Rights movement in the early 1960s), the oppressor-oppressed model is to the Left’s credit. However, when applied unthinkingly or hypocritically, I think it discredits the Left. Some progressives realize this, but many do not. I think they would benefit from reading my revised Three Languages of Politics when it appears next year.