Who said that they are endangered? What if they are all new invasive fish, it didn’t say they already existed in nature, simply that they are rare. A one of a kind fish, is the rarest of fish.
If its effectively a normal spread of people then its a resource. If this is some genie trick with unintended consequences like all of them being unemployable alcoholics who all need a place to crash then its a liability.
Tis a shame the uncles don’t come with a real estate empire to house your personal army of alcoholics in. Imagine the political sway you could have by threatening to put them all loose on downtown at the same time? There’s an infinite amount of them! It would destroy the city!