You are just wrong. The police were lawfully at the home to serve an order of protection. The police lawfully took possession of the loaded handgun.
The man broke the law, and became an immediate deadly threat to the officers when he attempted to, by force, re-take possession of the loaded handgun.
You can disagree with the law all you want. You have several, lawful, ways to show your disagreement. Peacefully protest. Support candidates that agree with you so you can change the law.
You can't fight with police over a handgun, whether you think you are in the right or not.
I give up.
You just can't read.