A report in The University of Chicago Magazine details the problems that interracial children have in relation to monoracial children, specifically, violence, drug abuse and disciplinary problems. Ah, but note this:
Choi has yet to decipher all the factors that exacerbate multiracial youths' "bad outcomes," but racial discrimination is part of the equation. Kids act out in response to ridicule or ostracism. In junior high and high school, "some [racial] groups are very exclusive. Other children will push you out if you're a racial combination." In similar surveys in Hawaii, she notes, multiracial youths did not show more problems than their monoracial classmates. "It's not even an issue there--so many people come from multiple backgrounds." In the U.S. at large, interracial marriages account for 4 percent of the total; in Hawaii they account for nearly half.
Cultural context matters.