It’s another thing to have a lot of barn cats, and quite another to have a lot of house cats, confined to a single room. In a barn you don’t clean the litter box several times a day after 4, 5, 6 or day 7 cats (if you let them breed). I dare you to let a litterbox for a day and a half uncleaned. Even with two cats.people here will ALWAYS tell you to fix your cats because it is best in their location.
they do not understand your situation any more that they understand mine.
i can personally use an extra half dozen barn cats, n can find homes for hundreds more, so i won't fix my feral cat.
just research the subject n know what you are getting into before you decide.
my vet bills will be low because i won't use small animal vets. horse docs charge much less.
Then, if you realise you can’t take care of all those cats, and they are not fixed, you don’t know what happens to them and how and where they end up. And kitten suffering is a lot to have on your conscience.