The court has never determined that corporations are people, that’s a completely unfounded meme.

What they did find was that (real, human) people have certain rights that they are able to exercise by organizing into corporations.

Eh? Unless otherwise specified, corporations satisfy the definition of a person across all federal laws per 1 USC §1, which reads: "the words “person” and “whoever” include corporations, companies, associations, firms, partnerships, societies, and joint stock companies, as well as individuals"

That 1 USC §1 is not a typo: this copy appears in the first section of the first title of US code, on disambiguating common terms used in law.