I was surprised to find out that the feral cats in my neighborhood are supported both by the MetroCats group and the local food bank. We have a few that come over to eat but only one that stays here full time. We call her Jill and she stays around and does not fight with our cat Jack. Lol!
I thought the same thing about my cat Sahara and I rescued 4 more cats anyways and they all cuddle together!
Sorry to hear that Sugartoes is not well.We have had small dogs over the years & found that a new young puppy perks the older dog up.
Maybe one of the kittens inside ,might cheer him up.