Well yeah, if you live in the same domecile as one of the "unapproved," you don't get to have your guns either. Next, it will be if you live in the same apartment building or condo complex, or if you have "unapproved" persons as overnight guests in your house. How do you eat an elephant? One bite at a time. How do you shred the Constitution? One tiny tear at a time.
It's incrementalism we have to worry about, not Toomey/Manchin or that nut Feinstein. They're just showing us what the end goal is. They're giving us a preview of what it is they're working towards.