I have a relative who lives in a very high density neighborhood and has a small fenced in yard....she feeds raccoons, squirrels, skunks and even oppossums....sometimes even a little food for the birds.....I don’t dare tell her that its dangerous for the animals and the humans to be feeding them that way because she wouldn’t take it well....I suppose she’ll learn eventually...
When she runs out of food for them, they'll probably act more civilized than certain humans will when the EBT cards flash zeros...
In my old hometown of La Crosse, Wisconsin a number of deer-lovers put salt licks in their backyards. The deer came in droves trampling neighbors’ gardens and generally making a mess of everything. The city eventually forced the people to remove the licks.
Tell your neighbor that squirrels can carry the plague. And all of those animals you listed can carry rabies.
Not to mention Hanta virus.