Privacy isn't explicitly guaranteed in the Constitution. So the Court has tended to side with the Government on matters of National Security vs. Privacy. In fact, the Constitution guarantees searches for the Government, so long as they are reasonable. On matters of national security versus a database, national security readily wins. The Court finds those searches reasonable.
So, in the case of Privacy, you aren't fighting your Representatives who can be bought to change laws. You are fighting the Court. That fight is much more of a long game. And that long game would seem to be better won through broader Civil Rights which are already under attack. Read the First Amendment and think of Snowden and the media. Read the 4th and consider the broadness of "unreasonable" and where it extends to property seizure laws. Heck read the 8th and consider how broadly solitary confinement is used as punishment in our prisons. Or how anti-drug and anti-marriage laws restrict personal choice. To me, protection of our broad Rights against the Leviathan is the issue of our time.
That said, the 2nd Amendment is also an ally in this fight. In contrast to Privacy, the right of gun ownership is explicitly guaranteed and the NRA is a partner in questions of privacy. We just need to help them realize that the national security apparatus could easily be expanded inwards to target gun owners. We need to help them realize that the technology to do so is already trivial for the Big Bad Government.
We realize it, but one of the secrets to the NRA's success is it's single issue focus, it doesn't give people unrelated reasons to not join it, as what you recommend would do. Unless it directly impinges on it or gun owners, like McCain-Feingold's suppression of political speech, it's not going to get a major push, although I'd expect it'll be added to "reasons we can't trust the good will of those in government".
You say single issue, but really the NRA is single Amendment. They fight for a strong, individual right within the 2nd.
Privacy, unfortunately, doesn't have that same focus within the Constitution. Where the 1st gives, the 4th takes away esp with respect to National Defense. So Privacy advocates are left to fight a broad argument based on the protections in the 1st and by narrowing the definition of reasonable searches. That's a much harder problem and a long game that requires many, complementary actors.
So, in the case of Privacy, you aren't fighting your Representatives who can be bought to change laws. You are fighting the Court. That fight is much more of a long game. And that long game would seem to be better won through broader Civil Rights which are already under attack. Read the First Amendment and think of Snowden and the media. Read the 4th and consider the broadness of "unreasonable" and where it extends to property seizure laws. Heck read the 8th and consider how broadly solitary confinement is used as punishment in our prisons. Or how anti-drug and anti-marriage laws restrict personal choice. To me, protection of our broad Rights against the Leviathan is the issue of our time.
That said, the 2nd Amendment is also an ally in this fight. In contrast to Privacy, the right of gun ownership is explicitly guaranteed and the NRA is a partner in questions of privacy. We just need to help them realize that the national security apparatus could easily be expanded inwards to target gun owners. We need to help them realize that the technology to do so is already trivial for the Big Bad Government.