Bit in bold is wrong, it’s recommended not to live with inlaws unless there is a need ie. they’re elderly or lonely.. The joint family system the way it’s practised by desis with DIL moving straight into the inlaws home is a Hindu concept, not a Muslim one.
Please stop implying that the joint family system is the Islamic ideal when clearly it’s not. Good for you if that’s what u prefer but to try and make out a girl is in the wrong for wanting to move with her husband into their own home is not fair.