I am a tail-end boomer in the U.S. so my experiences were with a world where socializing was more functional: we shopped in public, played in public, read in public libraries, watched movies in public, rode transit together, etc. Being in public was a requirement, not a choice. While there are still remnants of this older culture still active in today's world in urban life, there are so many options for not being in public that it is simply easier to avoid it. We all want our space in one degree or another.
On the playground growing up, my world was filled with name-calling and backbiting. I was a heavier kid, so that was my burden. Other kids had bucked teeth, warts, limps, they were too short, or too tall, uncoordinated--whatever--nobody really escaped the wrath of the crowd. We were forced, by our parents, to just deal with it.
My parents like many others in their generation recognized this behavior for what it was--natural. Watch an episode of the Little Rascals--you will see what I am referring to.
Most if not all of those kids who were called names and isolated in some way found ways to break out of their pigeon hole: playing sports, playing music, making art, studying hard at school, boxing, singing, dancing, cracking jokes, whatever. Then they were heroes, and the crowd could celebrate them--and they thrived.
I know this sounds overly idealistic, but it is true. I experienced this first hand in a neighborhood of several hundred kids from broken homes, poor homes, ethnic homes, etc.
Voiceless people must find their voice. The responsibility is their's. The crowd will not come to the rescue of the person who won't stand up for themselves and make their way in life.
Loneliness is very, very sad. The cure to loneliness is in the powerful hands of the lonely person. Do whatever it takes, as long as it takes, to work on those things that hold the lonely person back from achieving something--anything--for themselves and then engage with the crowd with more confidence.
I appreciate what you are doing by helping others--that is one of your superpowers. Live a good, strong life!