"The law and Constitution (as interpreted and implemented by our system of government) are the constraints -- not specific technological capability."
History has proven that the primary thing that kept the 4th amendment alive for as long as it lived was the technological inability of the govt. to snoop on most aspects of its citizens lives. Now that technological progress and the digitization of our lives has made it technically possible to capture and examine grand swathes of citizens' lives, lo and behold, suddenly all those previously sacrosanct legal constraints of the past suddenly start getting REAL squishy. Suddenly, Orwellian "full capture" approaches are claimed to be NECESSARY for the govt. to properly protect the HOMELAND against Oceania. Or is it Eastasia these days? I always get it mixed up.
Worse, the military-industrial types and their security pawns in Congress actively chip away at whatever fig leafs of legal constraints still exist on govt. snooping as we've seen over the last decade and a half.
Then these same folks have the audacity to be shocked, surprised and upset when citizens and companies object to them shredding their formerly fundamental rights. They smear anyone who actively takes steps to restore a more proper balance as criminals, terrorists and traitors.
As the OP said, they can go fuck themselves. You aren't putting this genie back in the bottle.