To regain respect and cooperation, have a private, open conversation with the team member. Ask for their perspective and listen to understand their reasoning. Then, calmly explain your position, reinforcing the value of collaboration and how your input aligns with the team’s goals. Show respect for their views while emphasizing that working together leads to better outcomes. By fostering mutual respect and clear communication, you can rebuild trust and encourage cooperation.

Regaining respect and cooperation starts with open communication. As Stephen Covey said, “Seek first to understand, then to be understood.” Address the Issue Privately: Have a one-on-one conversation to understand why they may be ignoring your input. Approach with curiosity, not accusation. Clarify Expectations: Reinforce the importance of collaboration and explain how their engagement benefits both the team and project goals. Lead by Example: Show respect for their ideas and contributions, creating a culture of mutual respect and cooperation. This approach helps rebuild trust and encourages more open, constructive communication.

Address it Privately: Have a calm, one-on-one conversation to understand why they’re disregarding your input. Listen and Acknowledge: Show genuine interest in their perspective and validate their ideas where possible. Clarify Expectations: Reinforce the importance of collaboration and respect for each other’s contributions. Provide Constructive Feedback: Offer input in a way that encourages growth and improvement, not criticism. Lead by Example: Demonstrate cooperation and respect through your own actions, fostering a positive team dynamic.

Just quit and move on. That will be the best option for all parties, isn't it? You are supposed to work as a team, yet the lack of respect shown is a clear indication your presence is not being valued and appreciated. Therefore, a clean break will be an ideal solution.