The crabs in a bucket is meant to describe the mentality of the people not the actual situation. They may have been given the mentality by the capitalist but regardless it is always going to be the "crabs in a bucket mentality." That is the name of that particular kind of brain rot. It's the same with marvel brain, Harry Potter brain, etc. It's just putting a name to the kind of thinking. They all stem from the same source which we much work to destroy but the source doesn't change the disease.