In Jain Dharma, such a declaration to “ignore a family” is not considered ideal or dharmic if it is done out of anger, hurt, blame, or social pressure.

A few important points:

• A Jain monk should uphold compassion, equanimity, and non-hatred.
• If a girl had to return from diksha because she lacked emotional support and proper care, then making her feel guilty is not in the spirit of Jain compassion.
• If all rules were followed by her, then the situation should be handled with understanding, kindness, and dignity, not humiliation.
• In Jain conduct, one should avoid man-vachan-kaya hiṁsā — harm by thoughts, speech, or actions.

So, if a monk or religious authority passes such a declaration to punish, isolate, or shame the family, that would be questionable from a Jain ethical point of view.

However, if there is a disciplinary or administrative matter inside a specific sangh, only the relevant acharya, guru, or sangh authority can decide according to their internal rules. Even then, the decision should be made with justice, restraint, and compassion, not emotional retaliation.

In short:

• Ignoring a family out of resentment is not Jain dharma.
• Kindness, forgiveness, and non-judgment are more aligned with Jain values.

If you want, I can also help you phrase this situation in a respectful Jain-language statement.