Teachers are certainly not underfunded as a budget item. They're 1) well paid[0], and 2) there's no evidence that paying them more results in better outcomes.[1] That's mostly because teachers have almost no effect whatsoever: even the very best only improve student outcomes by a small amount, and the effect fades after a few years.[2]
On the other hand there's evidence that teacher collective bargaining wastes hundreds of billions annually.[3]
Just because they're not conspicuously wealthy does not mean that they're blameless or virtuous or unsuccessful as a special interest group.
On the other hand there's evidence that teacher collective bargaining wastes hundreds of billions annually.[3]
Just because they're not conspicuously wealthy does not mean that they're blameless or virtuous or unsuccessful as a special interest group.
[0] https://www.city-journal.org/html/no-teachers-are-not-underp...
[1] http://econweb.ucsd.edu/~kamurali/papers/Working%20Papers/Do...
[2] http://slatestarcodex.com/2016/05/19/teachers-much-more-than...
[3] https://www.nber.org/papers/w24782