No, it's not. Most universities do a "comprehensive review," which looks at factors beyond raw test scores. Because Greg's 8-point test score advantage over Jamal doesn't mean much, when Greg grew up in an affluent household with two college graduate parents, went to Montessori kindergarten, private elementary school and college prep school, and Jamal grew up with working-class parents who worked multiple jobs, went to public schools in disadvantaged neighborhoods, and had to work during the school year as a teenager to make money to help support the family. Jamal is almost certainly harder-working than Greg, and is probably more capable, but unlike Greg, wasn't raised since birth to be a college freshman.
Looking at those other factors doesn't require quotas.