The article talks about children and pre-university education. In my opinion as a foreigner, the USA fails at pre-university, scores ok at undergrad level, and

The article talks about children and pre-university education. In my opinion as a foreigner, the USA fails at pre-university, scores ok at undergrad level, and excels amazingly at grad level and afterwards. The USA imports people all the time, including thousands of graduates. Like you and me. Very few countries do it at a comparable scale; perhaps only the UK and Switzerland.