In a multicultural society, promoting the belief in the primacy of a single culture may lead to cultural conflicts, social division, and disrespect for other cultural groups. The core value of multiculturalism lies in respecting and accommodating different cultural backgrounds and promoting social harmony and coexistence. Therefore, we should advocate cultural festivals to enhance understanding and exchanges between different cultures, rather than promoting the concept of the primacy of a single culture. The following are some suggestions to help promote cultural diversity and mutual understanding through cultural festivals in a multicultural society： 1. **Multicultural festivals**: Organize festivals covering multiple cultures to showcase music, dance, food, art and traditional customs of different cultures. This allows people to have the opportunity to understand and appreciate the uniqueness of other cultures. 2. **Cross-cultural cooperation**: Encourage communities of different cultural backgrounds to participate in the planning and organization of festivals and promote cross-cultural exchanges and cooperation. Through cooperation, mutual understanding and respect can be enhanced. 3. **Educational activities**: Add educational elements to festivals, such as cultural lectures, workshops or exhibitions, to help people gain an in-depth understanding of the history, values and contributions of different cultures. 4. **Inclusive design**: Ensure that the design of festivals can accommodate participants from all cultural backgrounds and avoid bias towards a certain culture. Multi-language support, barrier-free facilities, etc. can be used to ensure that everyone can participate in and enjoy the activities. 5. **Respect and equality**: Emphasize the values of respect and equality in festivals and encourage people to accept and understand other cultures with an open mind, rather than seeing them as threats or inferior. 6. **Promote dialogue**: Create opportunities through festivals to allow people from different cultural backgrounds to have dialogues and exchanges, share each other's stories and experiences, and enhance mutual understanding. 7. **Cultural innovation and integration**: Encourage cultural innovation and demonstrate the integration and interaction between different cultures. For example, you can organize cross-cultural music performances, fusion cuisine displays, etc. to showcase cultural diversity and creativity. In these ways, cultural festivals can become a platform for promoting social harmony, enhancing cultural understanding and respect, rather than strengthening the concept of monoculture. In a multicultural society, respect for and tolerance of diversity is an important foundation for building a more inclusive and equal society.