Let's say I want to influence people to vote the way I want them to.
So the first thing I do is I found a "news organisation". We don't have any actual facilities or ability to do any journalism, it's just a website, a youtube and twitter account, but we call it something like "Truthful News". Maybe make it Latin so that it sounds really fancy and sophisticated.
So the next thing I do is, I find an issue which is divisive, and I make up a lie which makes the position I want people to adopt seem reasonable. Let's say I want people to vote for a candidate who has a hard anti-immigration stance. I could lie and say that there is currently nothing to stop anyone crossing the US-Mexico border. Maybe I could videotape myself outside somewhere in a spooky mask and then claim I'm crossing the US-Mexico border even though I'm not, then post that video with SCARY MUSIC.
Then maybe that video gets shared and reacted to millions of times, and maybe the candidate I'm supporting uses their own social media to spread it to their followers.
And then, to avoid legal consequences, what I do is I issue an extremely soft retraction buried somewhere on my website saying "oh no, we got a few things wrong and this entertainment video didn't meet our rigorous journalistic standards". Obviously, that retraction isn't shared or publicized by any of the millions of people who shared the original claim, so the vast, vast majority of people who were exposed to that deliberate lie never saw me admit that it was untrue.
And then I do the same thing again... and again.. and again.. because again this is an intentional scam.
Is this the intended functioning of free speech? Did the troops risk their inexplicably important and precious lives so that I could be free to scam people into voting against their own interests?