If someone (companies included) is so sensitive to being down-voted perhaps the internet isn't for them. In the case of one campaign of which I'm aware, Lucasfilm and Disney has been hammered by Star Wars fans, down-voting their videos because they have no other way to send a message to Disney that the personnel actions of Kathleen Kennedy have thrown the plans for the Mandalorian -- and it's connected shows -- into delays and uncertainty. I'm pretty sure Disney (and their shareholders) are more upset by the fact that #CancelDisneyPlus is still trending on Twitter, something that actually costs them share value. That YouTube would do this further shows that their platform is for big companies and brand-safe content free from negative perceptions and not "You" like their name implies.
> they have no other way to send a message to Disney
Actually, the best and most effective way is to respond as consumers and vote with their dollars. Disney is a very profit centered and savvy company. If their profits on Star Wars and their streaming service drop off they will change their direction.
All signs point to people upset at Kathleen Kennedy as being a vocal minority. Disney is raking cash in on Star Wars and Lucasfilms in general and the population of Star Wars fans is growing. If #CancelDisneyPlus was a big deal then we'd see it in Disney's actual business moves, but it hasn't had an impact and downvoting on YouTube is probably similarly ineffective.
