1) Once they register, they get to be on the ATF list of people to harrass. They better tell their teenage grand daughters to dress in something they don't mind being seen in when the ATF drags them out of bed at 3 a.m. while they are kicking grand dad in the ribs.
2) What is to stop the next democrat from turning this on its head and using the registration against them?
3) What is magic about 1968?
This message is already being advertised to all gun owners, under Project Prison Rape Exile.
2) What is to stop the next democrat from turning this on its head and using the registration against them?
Why, how could they? Gun registrations have never, ever, not once in the history of the Earth, let alone America, been used for confiscations. Except for California, New York, Cambodia, England, Soviet Union, Nazi Germany, Turkey, Rwanda ....
3) What is magic about 1968?
1968 is when the "Gun Control Act" was passed, which significantly changed the rules for gun ownership. Apparently they only want pre-those-rules guns to be registered. Note that the BATF was never granted to power to ban guns, only to collect taxes on them, by registration. But in 1986, they decided they wouldn't "accept" any more registrations, so all subsequent production of those guns became banned from private ownership - those are the Jackbooted Thug Law Enforcement Only firearms today.