I think this is a good claim that is supported with good evidence from the article used. Conflict between divorced or separated parents can have very detrimental effects on children's mental health. this study was done by the Arizona State University's Research and Education Advancing Children's Health ( Reach) institute found that such interparental conflict increases kids fear of abandonment as they get older, which also shows and can arise with future mental health issues for these kids.
This study was led by Karen O'hara, who is a research assistant professor of psychology at ASU, her research has focused on the impact of family dynamics and child development, which is important to why this source is credible
other research supports this claim, many studies have that shown that children exposed with parental conflict are at a higher risk for psychological problems, which includes anxiety and depression. this seems to be consistent Across the many different family structures.
The assertion that conflict between divorced parents can lead to mental health problems in children due to the research and evidence found. Both the ASU study and other scholarly articles that parent conflict can pose a significant risk to childrens well being.