Earlier quoted context omitted.
I've explained elsewhere why raising wages doesn't solve the problem. You are convinced there is no problem when you admittedly have no experience with the issue. You're also expecting to see changes that wouldn't fix the problem because of your lack of experience with The problem.
What you don't seem to understand is that the visa system destroys the whole concept of supply and demand. If your business can't hire workers, you will have to raise salaries. If you can't afford the higher salaries, you don't have a viable business (at least, without the use of wage arbitrage and indentured servants). The extra supply of labor will come into the market as soon as they're receiving signals that wage…
You're also assuming the growth in jobs has been steady and predictable which it hasn't a spoiler in demand runs the whole idea that we just need more juniors starting.
The problem is companies can't wait so they can bring in workers who pay taxes here and contribute to the economy or they can move there jobs over seas. I expect we'll be seeing a lot more of the latter going forward.