Yes, gun registration worked great in 1930's Germany, especially the part where they knew where to confiscate them...
Those opposed to gun ownership think that some slight infringement is OK, yet have no problem screaming "no infringement on freedom of speech" when it comes to burning a flag or saying the Pledge of Allegiance.
My home doesn't have a serial number. I can burn it down without notifying anyone. There was no government background check in order for me to buy it, and they can't restrict who I choose to sell it to.
My cars? I sold those without background checks, too, and there wasn't a requirement for me to notify anyone that I sold it. The person who bought it didn't need to, either, unless he was choosing to have it licensed and titled for operating on a public highway (he wanted it for operating on his farm, and didn't really care if it was going to pass emissions or not).
For all the cries of gun violence, there's very little recognition from liberals that the vast majority of all gun violence is done by criminals.
News flash: criminals are not going to follow the laws, regardless how restrictive they get. Meth and cocaine are illegal, too, yet there's no shortage of it anywhere in the US.