It is the nature of unlimited government operating without legal limits. The only limitation to the expansion of power is the people that resist that expansion.
People are subjected to humiliating and degrading overreaching powers and eventually surrender as they learn through trail and error that if they surrender, things will go better for them.
As frequent fliers, we primarily see the the TSA as the embodiment of that.
But it is true throughout leviathan government.
It is reflected in the tax code and its indecipherable rules.
It is true at OSHA.
It is true the multiplicity of often conflicting regulatory bodies throughout government.
It is reflected in environmental rules that deprive property owners of the lawful use (taking) of their property without compensation.
It is reflected in the almost unlimited availability of eminent domain to acquire property of the citizens by government just to turn over to a private business.
The Constitution has been turned on its head. A document that was originally intended to limit the power of the new government is used to advance its power in an unlimited fashion.
So, people are harassed. People are abused. They are threatened. They are taught to fear the government as the government has broad powers to imprison or coerce its citizens at the threat of violence or death. The people have to be brought under control as they are the only force that can stop it. The states were emasculated years ago. The people are the last hope.
It has become an authoritarian tyranny, albeit we are not yet to a hard tyranny of massive oppression. The TSA is just our little corner of it.