> Once upon a time we had a First Amendment.

Hey, Trolio, we still have the First Amendment: from The Atlantic, November 2, 2012:

"In 1969, the Supreme Court's decision in Brandenburg v. Ohio effectively overturned Schenck and any authority the case still carried. There, the Court held that inflammatory speech--and even speech advocating violence by members of the Ku Klux Klan--is protected under the First Amendment, unless the speech 'is directed to inciting or producing imminent lawless action and is likely to incite or produce such action' (emphasis mine)."

The first amendment doesn't apply to private companies, which are quite free to censor things on their platforms, Bitchute included. After Bitchute gets sued a few times for slander etc. its tune will change.