Does the brother have the right to object to his sister’s marriage and to threaten to cut her off when her father agrees to it?

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Dealing With Apostate Father and Mother Who Doesn’t Pray
How can a son reconcile with his father when there is a dispute between them?

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He incited a woman to leave her husband, then he married her and claimed that her son from her first husband was his child
She married a non-Muslim and he refuses to become Muslim
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Dealing With Apostate Father and Mother Who Doesn’t Pray
How can a son reconcile with his father when there is a dispute between them?

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