Earlier quoted context omitted.
Qualified immunity just protects the police, and other government officials personally. If there is grounds for a lawsuit then he could still sue the government that employs the police department. I think in general, if it is a legit warrant, it is very difficult to win a lawsuit for damage. Though with that video, and how high profile this has been, he might be able to win something. though IANAL, and I'm just going…
The government has sovereign immunity which is why you usually have to sue the people involved rather than the government directly.
People routinely get money from excessive force used by police officers, and I believe that does extend to property too.
Qualified immunity means it is almost impossible to sue the officers directly, which is why so many people have a problem with it. Not only do taxpayers have to pay for the actions of a bad police officer, the officer themself isn't held responsible for their actions.
On the other hand, you don't want officers afraid to engage with a dangerous situation because they might bankrupt their family if they do the wrong thing in the heat of the moment. It is a sticky situation, and before smartphones and body cameras there was no real way to know if an officer crossed the line. As technology improves, I expect there to be more personal accountability, while also allowing the officers enough leeway to do their jobs without hesitation.