Considering the fact that, as of 2018, the TSA's astonishing 70% failure rate is considered an "improvement", I think we're looking at a dysfunctional agency to begin with, not really doing a job that law enforcement used to do a lot better.

Like ICE, it is a dysfunctional agency with a dysfunctional and conflicted mandate.
The only people pushing the Athenian Straw Man Nonexistent Threat of Slippery Slope Windyfoggery (ASMNSSW) RE DEMOCRACY are people who have a misunderstanding/problem or hatred of democracy. (See AUTHORITARIANS)