Wikipedia list some:

"Comparisons across marriage cohorts revealed that, overall, interracial couples have higher rates of divorce, particularly for those that married during the late 1980s." https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1741-3729.2008.00491.x

Wikipedia also list this study "Marital Dissolution Among Interracial Couples" which is more contemporary and has a much higher sample size, and found overall interracial marriages are less stable than endogamous marriages. Now weather is due to racial difference in intelligence, which it mirrors (they controlled for SES and didn't it was per se causal) it could be. Wikipedia has a large section on the effects of divorce on children's mental health. The official sources don't paint a pretty picture.

see these points for more extensive data.

• https://thealternativehypothesis.org/index.php/2016/10/15/race-mixing/
• https://emilkirkegaard.dk/en/2017/04/is-mixed-race-breeding-bad-for-you/
• https://emilkirkegaard.dk/en/2021/02/how-closely-related-is-your-spouse/

Our Media paints it as a total hegemonic positive yet the fact of the matter paints is it has overall negative psychological and social effects.