Whether or not this claim is true (and there’s no way to verify it at the moment), that Facebook post reveals how easy it might be for a vocal minority to manipulate a metric such as this and create a false narrative. Yes, there is a ticked-off splinter of the Star Wars fandom angered by The Last Jedi. These MAGA–esque fanboys—the same that called Rey a “Mary Sue” or lost their marbles over the 2016 all-female Ghostbusters reboot before it even hit theaters—have been spreading their overblown hatred all over social media. As you might imagine, those “fans”—who seem to take their cues from First Order supremacists Hux and Kylo rather than Resistance heroes Rey, Finn, and Poe—aren’t very comfortable with the film’s more progressive messages. Their hysteria-tinged reactions are best ignored."

https://www.vanityfair.com/hollywood/2017/12/star-wars-the-last-jedi-backlash-negative-fan-reactions-rotten-tomatoes-score

(http://www.autoadmit.com/thread.php?thread_id=3832189&forum_id=2#34949882)