Issue: I am the team’s leader, but I do not get everyone’s respect.
People usually disrespect an ideal, a stance, an attitude, or character trait before they openly disrespect an individual. You need to assess if you have done or said anything to create disrespect. It might not have been something that you did or didn’t do, but could be a collective memory from the team’s past.
I suggest you begin an ongoing heartfelt conversation with each person to determine who respects and doesn’t respect your role. These conversations are designed to build a bridge of trust, so start by asking “How can I better serve you or help you in your job?” Then do those things they ask for. Soon respect for you will grow.