Dreams can often reflect our subconscious thoughts, feelings, and experiences. Here’s a potential interpretation of your dream:

1. Setting and Groups: The modern western setting combined with elements of traditional culture (like the impression of Native American and African American identities) may symbolize a blending of your personal identity with cultural influences. The presence of groups suggests themes of community and belonging, and the dynamics within the groups may reflect your feelings about teamwork, leadership, and competition.
2. Leadership Dynamics: You mentioned sitting across from a leader and wondered if you were a leader too. This could signify your exploration of leadership roles in your life. Are you feeling the desire to take charge of a situation, or are you comfortable with following? The gender dynamics may indicate how you view authority and influence in your relationships.
3. Conflict and Violence: The gunfight and your experience of dying and coming back can symbolize facing challenges or fears in your waking life. The recurring theme of death and revival suggests resilience and the ability to overcome obstacles. It may reflect a situation where you feel you have been tested but have emerged stronger.
4. Celebration and Transformation: The howling celebration could represent a release of pent-up emotions or a feeling of victory after overcoming struggles. The change in clothing color to red might symbolize passion, energy, or a new phase in your life. Red is often associated with strong emotions, perhaps indicating a shift in how you relate to those around you or how you express your identity.
5. Social Dynamics: The moment when people didn't notice the change in clothing and questioned if plans were made without them could reflect feelings of inclusion or exclusion in your social circles. Are there aspects of your life where you feel left out or uncertain about your place within a group?

Overall, your dream seems to explore themes of identity, resilience, leadership, and community dynamics. It might be helpful to reflect on recent experiences or feelings that resonate with these themes, as they could provide additional insights into your waking life.