Actually, in my home, I most certainly can unilaterally ban whatever speech I like.
And that's a good thing.
If the price of my freedom of speech (of which controlling what speech is allowed a platform on my property is a part) is allowing Facebook, Twitter or you to have the same rights, I'm okay with that.
I also do not agree that corporations are people, in general.
https://www.facebook.com/terms.php
Think of it as the "no shirt, no shoes, no service" rules of Facebook. And they are fully within their rights to have them.
Don't like it? There are ways to change the laws. Depending on what it is that you'd like changed, I'd likely support you.
>I also do not agree that corporations are people, in general.
Sadly (and I'm not being ironic), the law disagrees. See my above comment about changing the law.
I agree that some speech shouldn't be tolerated. But it cannot be Zuckerberg, or Trump, or Biden, or you, or me, who unilaterally decides what speech is fine, and what speech is banned.