Navigating Family Ties for My Daughters' Sake

Assalamu alaikum, I'm a revert Muslimah from Belize. My husband and I reconnected after a period of less than ideal interaction in our youth, for which we've sincerely sought Allah's forgiveness and guidance. The core issue now is family acceptance-his family has struggled to welcome me because I'm not from their Yemeni background and due to differences in appearance. We've never met his parents or one sister, though others in the family have been more open. As we prepare to welcome our second daughter, my husband feels concerned about our children's place within his family and hopes bridging this gap might ease tensions. Initially, their reaction when he told them about me was hurtful, involving harsh words and pressure to end our relationship, which even led to distressing comments from his mother. Growing up in a multicultural Caribbean setting, racial diversity is normal to me, so their stance was particularly painful. I once resolved to keep my distance from a family that opposed our union so strongly. However, with a second child on the way and my husband's wish for our first daughter to feel more included, I'm reconsidering. There have been small positive signs-like his mother sending cookies and asking about my pregnancy. For the sake of family unity and my children, I'm willing to meet halfway and try to build respectful connections. Any advice on approaching this? I don't want to unintentionally offend; are there thoughtful gifts or topics to avoid? May Allah make it easy for us and strengthen our family bonds.