John Smith,
Your post is valid for most if not all professions, theory is mostly not related to the actual practical performance.
The lack of understanding of young colleagues is stunning. And this is due to the astonishingly low requirements to pass the Theoretical ATPL nowadays.
we are reponsible for 400million$ aircraft, hundreds of lives and operating in a lethal environment near the speed of sound...for that YOU DO need to have in-depth knowledge of your environment, physics etc.
If you do not accept that, go drive a bus or train please, but stay out of our Profession where at least SOME want to see a better knowledge and professionality.