Here is one new trick for me how the muslims were able to gain hold against sikhs girls. They kidnapped them, rapped them on videos and then threathened them to release video to force them to continue.
Are you saying that they use the videos to blackmail these girls to have even more sex with them? How does this even work? Are the girls too afraid of the shame if these videos are ever released?
Girls are emotional and sensitive they care about their reputation much more than men do. They are held hostage by those threats and psychologically they became slave and are incapable to escape. But its a good thing that such groups were made to combat the threat coming from the muslims who are abusing and assaulting the women.
Don't forget the cultural and religious dogmas among Indian people. If an Indian girl gets desecrated in such a way she becomes a shame to the family as far as I know. So these girls might also be afraid of what their families might do to them. Pretty filthy business no matter how you look at it.