This paper is by Emily Winterbotham (RUSI) and is published by the Tony Blair Institute. It appears on a quick read to dispute that mothers can help and taken from the summary:
The rationale is that woman are inherently more peaceful than men and that, if empowered to do so, they can stop radicalisation to violence. Many schemes have focused on mothers. The assumption is that mothers are better able to detect signs of a move to extremism in their children. Critics of this approach point to the lack of publicly available evidence that supports it. There is (so far) no definitive evidence showing that mothers can spot and address increased radicalisation to violence in their children. This paper explores the thinking and assumptions behind this myth about women, and specifically mothers, in CVE programming.
Link:https://institute.global/insight/co-existence/do-mothers-know-best-how-assumptions-harm-cve?