There are no salami tactics when it comes to setting up a national gun registry like in UK or Oz. Either it exists or it doesn’t and only parliamentary dictatorship as in those two places makes it possible.
Not even Democrats will vote majority for Feinsteinian national gun registration. She’s failed at that for thirty years.
Without registration there is no confiscation.
I have less confidence that we will not soon become a dictatorship. I’m not sure we are not very far away...
There are salami tactics, which have been countered.
Setting up the GCA 1968 with requirements for bound books and 4473’s is a salami slice.
Requiring FFL sold guns to go through the NICS is another.
Next salami slice: requiring NICS and 4473 for all sales (universal background check.
Step after that, in a generation or two, full fledged registration as is not happening in California.