I believe that people around the world who participate in these marches believe we are all brothers and sisters Sharon. Per John Donne. "No man is an island entire of itself...every man's death diminishes me...never send to know for whom the bell tolls. It tolls for thee". Courtesy of Meditation 17. Now you may not feel as if you are related to others. I do. I always have . I always will. Did I answer your question about "sibling". Thank you for your reply and Happy Friday to thy.