If you re-read my original post you will notice that I did NOT advocate for artificially restricting worker supply, or any kind of protectionism.
I merely warned that what we're seeing in tech WILL bring an end to the "high" salaries, and that those who wish to maintain their current state, should consider PERSONAL GROWTH and advancing their skillset as a means of protection.
We can debate all day about whether its a "perceived" lack, or a real lack. I whole heartedly disagree that salaries are, as you put it, "sky rocketing", especially when you account for cost of living in the areas where the "skyrocketing" is happening.
And oh, yes, how dare a doctor who spent upwards of $500,000 in medical training, and devoted years to internships, and residency, be worried about a lowered skill cap or regulatory protections (which they counted on) for entering their profession! How dare they!
Please. Of all the examples of protectionism you could have given, you chose perhaps the most acceptable and understandable. Yes, people care about their livelihood and the ability to retain efforts and investments they have made, so would you.