There are thousands of small tribes on Earth who call themselves by names that translate to "The People". Thus their tribal names claim that only members of their own tribe are people, and all other members of the species Homo sapiens are not people.
A significant minority of those tribes have warlike cultures, where men are expected to gain wealth and prestige by stealing from other tribes and killing members of other tribes. Those tribes are, or at the present usually were, enemies of all other humans, except for anyother groups which were their allies. And calling their tribe "The People" certainly helps spread the idea that members of other tribes don't have rights to be respected.
To me "people" means a group of intelligent beings, no matter whether they belong to one species or a million different species, and no matter if they are all biological or some cybernetic.
On Earth there are millions of species of lifeforms, plants, animals, and other lifeforms, and at least one species whose members consider themselves to be intelligent beings and people.
In prehistoric times there were a number of other species of hominids which seemed to be intelligent beings and people as well as can be told from the fossil record. Those included, but were not limited to humans, defined as members of the genus Homo, of which Homo sapiens is the only surviving species.
Among the thousands of mammal species existing today, there are a few with large brains which exhibit sufficient intelligence that it is legitimate to wonder whether their intelligence ranges overlaps with that of Homo sapiens and whether they should be counted as people. They include at least four species of apes, at least three species of probiscideans, and many species of cetaceans.
And in my opinion, as long as there seems to be even the slightest possibility that members of those species should be considered people, they should be treated like people with the right to live. Better safe than sorry.
But at the present time it is legal to hunt and kill members of some of those species in some legal jurisdictions.
So I don't approve of the idea that only members of the species Homo sapiens should be called people, because of the possibility that members of other species existing on Earth today might also be people. And I don't like works of fiction that limit the word "people" to members of the species Homo sapiens because it helps to spread the idea that no other beings on Earth have rights that should be respected.
And what happens if a space ship from an advanced alien civilization lands on Earth? What if some humans react in disgust to their strange alien appearance and attack them? It would be very easy for angered members of a more advanced civilization to find ways to destroy all life on Earth. Even if their spaceship is not equipped with dedicated weapons, the spaceship itself with the enormous power it controls could very easily be used as a weapon to devastate an entire planet.
There are real life stories about people who believe they encountered aliens from outer space and say that their first reaction was to attack them. If real aliens ever land on Earth, a similar reaction could result in the total extermination of all humans.
And yet despite that obvious danger, as far as I know there is not a single jurisdiciton on Earth which has made a law specificaly saying that any beings which look like they came from other space should be treated as people and that attacking them is forbidden.
So I strongly oppose the practice of using the word "people" as a synonoum for "members of the species Homo sapiens", and to the widespread belief that only members of the species Homo sapiens are people with rights, a belief that can only be reinforced by the practice of using the word "people" as a synonoum for "members of the species Homo sapiens".
So I think that all writers of science fiction and fantasy stories should make a point of having all the good characters use the word 'people" to include members of all the species of intelligent beings in the story, and have only evil, misguided, and bigoted characters restrict the word "people" to members of their own species.