Sorry you are just wrong.
“Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.”
Do you see “Apple” or “Facebook” or “A private company”?
It does not work that way.
Case in point,Washington D.C. bans all guns. Ditto New York City and Chicago. But the 2nd Amendment says they can’t do this?
Right but they still do it anyway.
Sorry you are wrong.
Can you open a private company and discriminate against race, religion or sex?
Answer no you cannot. You will be shut down in heartbeat by the government and they will not care about your first Amendment.
I see a statement of intent to prohibit censorship. We can extrapolate everything necessary from that.