How the survey works is they look at the range of scores that qualify for admission to the elite college and then take the students in the country as a whole who have scores that qualify.
A lot of Asians would get into the elite colleges if only test scores were taken into account. But Asians already apply to and go to those schools. Many White male students with above average scores don't apply to those schools and may not even go to college.
In the methodology of the survey, a lot of White students who don't apply to or attend such schools are "assigned" to them on the basis of their test scores so a lot more of them would attend such schools according to the survey.
In the real world, though, more of those Asians who apply to elite schools would get into their first choice, while White guys who don't apply to such schools probably still wouldn't apply to them.
Not very many elite white male scorers don’t go to college.