I think we have a unique set of circumstances when it comes to King Power.
Regardless of how much you question their role in winning the title or how much luck in hiring Ranieri was involved, fact is King Power were the owners for it. Follow this up with Vichai's death at the ground, King Power's support in the community over the years, and the FA Cup win and Europe runs and you can see how it would create a significant emotional bond with the fanbase. It's different to Newcastle, Sheffield Wednesday, Wolves etc.
Clearly for many on here (and me too), our decline over the last five years and lack of change, accountability and leadership at the top mean a change in ownership is now required, but for people who are less engaged it will probably take a lot more (League one, even administration) to reach that point, and even then it'll be reluctantly. We can see from the response to the King Power Out banner on social media and in the stands that large chunks of the fanbase are nowhere near that point yet and some are unfortunately prepared to get violent over it.