Feral cats and cats that have lost their home live miserably short lives. Kittens often die before the first winter, females are exhausted and half starved by constant kitten bearing, and males roam around looking for sex, risking their lives on the roads and picking up fatal infections.
How different from our own lives as pampered pets. Regular meals, Warm beds. Central heating. And human servants.
As cats we can't do anything much, as it is against our nature to share or give away our food (unless we have had our own kittens). Most of us do not want to share our homes with another cat. We prefer our humans to be totally devoted to us.
So it's up to humans to help. Out there are dedicated cat trappers who will help feral kittens find new homes, trap and rehome stray pets, and trap, neuter and return ferals.
My personal favourite is Sunshine Cat Rescue, a small devoted rescue in the UK. If your human knows a good one, purr in their ear till they send some money.
Help kittens survive.