I get it you dislike my child

I'm drained my anxiety has not been well from Christmas. I just need a safe place to vent. I have family that has children who are autistic. I love these children dearly like they are another limb on my body. My children however are not loved by these family members. They wouldn't even acknowledge the birth of my youngest and met him at Christmas he is almost 9 months old. They don't want to be in the room with my children and do not want anyone speaking about my kids. They continue to say how hard it is to be around my "normal" kids. Ihit a point now where I don't want to be around any of them because they clearly are so upset about their life they are taking it out on my children. My sweet kids have no idea of the rejection they are facing. It is bad enough they don't call want to visit unless the kids are not around or ask about my babies at all. I have given up the dream of us raising our families together, holidays, and vacations. Holiday gatherings everyone wants to be together but this family and I don't want my children's feelings hurt anymore by this family. I don't know what to do anymore. I can't exist without my children they are apart of me and my whole world.