I didn't want to say this but you already did. I always felt this way. The airport is a private company not a government facility. Even worse is how security is in other countries. Last out of country airport I left you went through customs with the same two questions coming into the country, where are you coming/going, and what are you doing? Move along sir. There was no "tsa checkpoint" you just go to the gate where your plane is. Every gate has an X-Ray machine for your carry-ons and for your body. Everyone gets the same treatment. Ask a few normal questions about your luggage, where were you, why, where are you going, then go through the cancer x-ray machine. Last time I forgot to remove my beanie hat from my back pocket and it picked that up. They showed me the screen which was a basic outline of a human with a square over my pocket. The airport employee asked me if I forgot to remove something. I showed them my hat and said I was sorry I forgot to remove it. They told me no problem and let me get on the plane. No random searches in the checkpoint and also no 2nd random searches before you board the plane.
This would never happen in the USA.