Here we go again…
Every iteration of gun control, with few exceptions, carves out exceptions for LEOs and Military. If you want this to stop a good start would be making these guys have to follow the laws the rest of us do, because if you campaign for more of the same from your lawmakers, I guarantee there will still be exceptions for the people who protect the rich.
Exceptions for active military can work because they are subject to the far more strict ucmj. Cops are a real problem though, they kill 1000 or so people every year with minimal consequence.
The ucmj being strict is worth little against someone taking up his guns and going rampage.
Why does anyone from the Police or Military need to own firearms privately? The only reason i could think of is training, but that is a responsibility of the employer, to give enough training to the cops and soldiers.
Private ownership of guns is allowed, asking why anyone needs it is non sequitur.
You need to decide if you are ok with living in a free society or not. In a free society people are going to be able to do bad stuff sometimes.