“Only the government can censor you. If a company chooses not to publish your work it's not censorship.”
That’s not correct but I don’t want to get into a discussion about different definitions when most people would understand what it means.
Big platforms like Youtube, Facebook, Twitter etc should be treated as public utilities. Their reach and influence is far beyond anything comparable in history. If they censor you can’t get your message out.
There is a massive debate about internet censorship and how/or if it should be controlled. Currently you have unaccountable executives deciding this. So although Trump is banned from Twitter (

), UnHerd had one of their videos banned from YouTube

– no explanation and no appeal. UnHerd got their video re-instated due to public pressure – but not all voices will be able to do that – and UnHerd now say how dangerous censorship is.
Nearly 100% of Israeli government requests to Facebook to block Palestinian content (from journalists & activists etc) is approved. None of the Palestinian requests are approved - therefore their story is not told. The rich will censor dissenting voices from the right or left. You can’t pick and choose who you censor.
If someone breaks the law it’s up to the government to regulate or prosecute.
In 2008 Wikileaks published a classified Pentagon Document. It said that they were worried about the growing anti-war sentiment in Western Europe several governments had lost elections as their populations turned against the wars in Afghanistan & Iraq. The Pentagon was concerned that they would lose their allies and have to fight alone. They said their only hope of reversing this trend was for Barak Obama to be elected – a more cosmopolitan, elegant & pleasant face on this war – he could sell the war(s) as benevolent. They don’t like Trump because he’s nasty person (which he is) it’s that he doesn’t put a pretty face on American imperialism, and he can’t deceive people.
Jimmydore glenngreenwald Fake Progressiveness – into youtube says it much better than I do.