Also, people that rate movies online may not be representative of the entire movie-watcher population, so that may be, in some cases, also not a very accurate measurement, unless you yourself are a typical movie rater.
In the gaming world, Call of Duty: Infinite Warfare got the most disliked trailer ever on YouTube, and still sold more than 13m copies. Somewhat similarly, logic-devoid, low-quality children movies can get as many dislikes as parents want, children will still watch them.