That is patently false: not only do immigrants score better than native-born Americans in tests, the mere presence of immigrants improve test scores for all students, when factoring in white flight
sesp.northwestern.edu/news-events/...
Presence of Immigrant Students Boosts Test Scores for All: School of Education and Social Policy - Northwestern University
U.S.-born students with high exposure to immigrants in their schools scored better on math and reading tests than similar students with low exposure to immigrants, according to a working paper co-auth...
Stephen Miller: "If you subtract immigration out of test scores, all of the sudden our test scores skyrocket"
