I don't think any sane person would be against raising ATC wages. But to refer back to my post, the situation might be different if it there were not also a massive pilot shortage as well! If these two pools of talent mostly overlap raising wages on one will probably just pull from the other.
It's probably a combination of raising wages and putting more money into recruiting teenagers considering vocational programs.
There are only so many competent people in our society, and that talent pool is being spread thin across all sectors of society which require such candidates.
There are looming doctor shortages, too. Professionals of all stripes.
https://www.statista.com/statistics/241488/population-of-the...
https://www.census.gov/library/visualizations/interactive/ag...
Look at 1980's population pyramid. Look at 2020's. 1980 is how societies with mild population growth look. 2020 is how populations with below replacements look (see the graph end?)
It doesn't matter how many Americans are under 30. It matters how many are between 20 and 60. And my comment was about "coming up". Over the next 10 years.
There is a very significant shift in our populations, all across the entire planet. The US isn't as bad as some regions, but it's still bad. Moving from "lots of young people" to "the same amount of young people as old", means more taxes, fewer people working in society, and so on.
Older people require more doctors, too. So you have fewer people in the working pool (as a percentage of the overall population), but with doctors you need more, the more aged your population is. And it's not going to get better, it's going to get worse and worse, with such low birth rates. A downward spiral.
So clearly someone just doesn't want to pay up.
In the US, ATC are federal employees, aren’t they? So they are regularly furloughed, too. In the current political climate, facing the wrath of politicians doesn’t seem that unlikely, either.
The US has form in this area, too: https://en.wikipedia.org/wiki/1981_Professional_Air_Traffic_...
Even if the federal government were to “pay up”, they cannot be relied upon to honor favorable contract terms since they also have the ability to change the law.
There would be more people interested in aviation choosing to be ATC than a pilot if our pay matched that of major airline pilots.
There are people going through the training and then quiting when they realize that can't get an opening in their hometown because that spot is reserved for a random person one week behind them in the FAA academy, and the pay won't make it worth moving away from their family.
There are more examples, and appropriate pay would fix most of them.
(Opinions are my own and not necessarily that of the FAA.)