Unrestricted capitalism doesn't exist anywhere in the world.
Depending on your definition, it may actually exist in many places around the world. As long as criminal CEOs/executives/engineers are not prosecuted under the laws they break everyday, one could argue "unrestricted" is the norm here in France, or in the USA. Two small examples out of a widespread issue:
- tobacco company execs lied under oath in the USA and killed millions for profit https://en.wikipedia.org/wiki/Operation_Berkshire
- fascist-owned CNews keeps spreading illegal (under french law) fake news yet noone is jailed, the fines barely make a dent in the profits, and their nationwide TV channel continues to receive license despite breaking all regulations https://en.wikipedia.org/wiki/CNews#Warnings_and_sanctions
That's just scratching the surface.
Neither does democracy nor free speech. It's interesting that you felt the need to quibble over only one of those three definitions.
I used those words in the context of the rise of companies like Meta and people like Zuckerberg. I trusted the people reading what I wrote to know that. A response telling me the US is a republic adds nothing to the conversation but allowing an individual to bask in their own pedantry.