Literally no one--except Justin--would want to use such a silly, made up word.
Le mot juste here would be "humankind," but one would have to be half-way literate (and not a halfwit) to think of it.
Update: Everyone sing:
People,"Peoplekind" means people.The most inclusive people in the land.He's a person,One very clueless personWho is punching above his weight.That has become his fate.It's because of his nameAnd his cuteness.Lib'ralsAre very special people.The most inclusive people in the land.With one Trudeau,One socks-a-rific Trudeau,A man who's convinced that he's good,Comes up with new ideas like "peoplehood."He hasn't the chops for the job,But, sob, he's a person who cons people--"Peoplehood" and people.The most gullible people in the land.