Did you read the article? Or just the name of the publisher?

What lies at the root of these challenges? Uncompetitive salaries take much of the blame. Across rich countries, teachers earn about 10% less than the average for people with tertiary education, according to the OECD. In lots of places the gap is widening. In real terms, teachers in England earned 12% less in 2022 than in 2010, while wages for roughly comparable graduates were about the same. In America, real wages for teachers declined about 6% over a similar period. They earn 26% less than other similarly educated professionals, reckons the Economic Policy Institute, a think-tank, though that gap narrows once benefits are included. This “pay penalty” is up from 6% in 1996. It is one of the largest such gaps in the world.

What? It says being underpaid is part of the problem.