They get placed in the ESL class simply because of a Spanish surname. I worked with one person at one engineering company, last name Rodriguez, who spoke perfect English but did not understand Spanish. She described how she was placed in an ESL class simply because of her last name.
“She described how she was placed in an ESL class simply because of her last name.”
Years ago a similar scandal was uncovered in the NYC public school system; the ESL students brought more money to the schools. The SHTF when the parents refused to accept it (realizing their children were simply being groomed to work as domestics for the 1%).