Who is "them" and how are they pushing on the supply side? The supply is only increasing insofar as workers from other industries are able/willing to transition, and even for "menial" jobs such as these, there is surely a fair amount of training that must be done. Moreover, corporations will probably prefer to temporarily increase wages for their current workers rather than take on a glut of novice workers and then do layoffs or wait for attrition afterward, so the supply side seems limited in my view.
