Dreams can be complex and filled with symbols that reflect our emotions, thoughts, and experiences. Your dream appears to touch on several significant themes, including family dynamics, feelings of isolation, fear, and a longing for support and love.

1. Family Tension and Isolation: The argument between your family members and the subsequent isolation you felt in the dream may represent real-life tensions or anxieties about your family's well-being and dynamics. The imagery of everyone disappearing could symbolize feelings of abandonment or fear of losing loved ones, particularly in the context of your concerns for your disabled brother.
2. Potato Chips: The presence of potato chips scattered everywhere might symbolize chaos or clutter in your life. They are often associated with comfort food, which could indicate a desire for comfort in times of distress.
3. Social Dynamics: The interaction with the popular girls in the supermarket might reflect your desires for acceptance and belonging. Their initial kindness and the playful sliding could represent a yearning for friendship and connection, but the shift to danger (the chase and attack) may symbolize anxiety about social situations or the fear of being judged or hurt by peers.
4. Violence and Conflict: The violent scenes in your dream, including the struggle with your mother and the attack by the man, could signify inner turmoil and feelings of helplessness in your waking life. This might relate to familial conflicts or personal struggles you are experiencing.
5. New Father Figure: The comforting image of a loving father figure in your thoughts at the end of the dream suggests a deep longing for care, support, and validation. This character embodies the nurturing qualities you desire in your life, especially during difficult times.
6. Cultural Imagery: The Slavic videos appearing towards the end might represent a need for escapism or a way to process complex emotions. The dancing women could symbolize freedom or a form of expression that contrasts with the chaos in your dream.

Overall, this dream may be reflecting your feelings about family relationships, social acceptance, and your need for emotional support. It might be helpful to explore these feelings further, perhaps through journaling or talking to someone you trust. Understanding your emotions can lead to healing and a greater sense of security in your relationships.