Finding Dory took hundreds of animators, voice actors (Ellen DeGeneres, Albert Brooks), and technicians years to create. When you watch via IsaiDub, those artists receive nothing. For smaller films, piracy can literally kill a franchise's chances of getting a sequel. While Disney might survive a few illegal downloads, the principle remains: theft is theft.

If you type "isaidub finding dory free" into Google, you are not just clicking on a harmless file. Here is the reality of what happens on such sites:

Different intents imply different lawful options; for example, short clip use may qualify as fair use in narrow educational contexts, while full-film viewing usually requires authorization.