Contemporary capitalist societies developed in the West from 1950 to the present and this type of system continues to expand throughout different regions of the world—relevant examples started in the United States after the 1950s

This Wikipedia article says that the US is a capitalist system.

Lobbying, donor interest protection, cronyism, rise of oligarchy

Where are these things listed in the article as being incompatible with capitalism, and their presence meaning it’s some other system?

What are you defining capitalism as, and what word would you use to describe our current system?