Mitt Romney said that. But he did not get into when they are people and when they are not.
Hobby Lobby corporation wants to avoid paying for healthcare coverage that includes contraception coverage even if there is no additional charge. Oh yes, here corporations are people, entitled to full freedom of expression and religious belief. Really. yup. true.
A non existent fake corporation wants a precedent allowing businesses to discriminate against gays. Yup, they are people, and their religious belief trumps your right for equal treatment and discrimination prevention.
Corporations are people. People acting like jerks can be shamed. People behaving like class 1 a-holes can by shunned. Oh! no!! that is Woke, man! not allowed. You can not ask a corporation to behave decently. You can sermonize from the pulpit shaming and damning people, but not corporations. They are... they are job creators and profit motive is the only thing that can drive them. Not your morals, ethics blah blah blah. OK get that.
Corporations are people. They can decide what can be said in their platform. If a private platform wants to prohibit whatever it deems as misinformation, whatever reduces the value of the platform, whatever messages that leads less user engagement, more user frustration, whatever loses them uses and eyeball time, they can ban it. Right? No way. The right of MAGA to shout into the megaphones pointing at your home window shall not be abridged.