When people aren’t slaving away to grind in a system that does its best to destroy community, you can build up a community. You don’t need to know all million people, only those around you.
Anarchism deals primarily with empowering and fostering local community and has figured this out for centuries. Whenever and wherever it is implemented we see people start to thrive again.
But as long as chuds like yourself keep saying “it’s impossible, we have to keep doing as we are” and maintaining this destructive system it will never be achieved.