Sometimes the stuff that is seized is actually evidence. There is not really any way of getting around the serious damage to your life that being arrested can do. It sucks if you didn’t do it, but I agree that the cops should not be permitted to steal from you just on an accusation, either.
An accusation of domestic violence can result in your guns taken away -most likely never to be seen again-in some jurisdictions.
And all too many people still believe “the police don’t arrest innocent people”.