[Chris2048]

> But restricting immigration is certainly not the solution.

Why not? A restriction signals immigration as an unreliable source of labor, hence de-incentivising business to depend on it on the basis that it is a risk.

> If you're arguing that the labor shortage is not a problem

There may a problem, but labor shortage itself, is not. An excessive shortage, or an industry-crippling shortage is another thing altogether; In either case, a shortage is a necessary, but not sufficient condition of the problem.