Why is "Higher education bubble in the United States" trending?

Wikipedia Overview

There is concern that the possible higher education bubble in the United States could have negative repercussions in the broader economy. Although college tuition payments are rising, the supply of college graduates in many fields of study is exceeding the demand for their skills, which aggravates graduate unemployment and underemployment while increasing the burden of student loan defaults on financial institutions and taxpayers. Moreover, the higher education bubble might be even more serious than the load of student debts. Without safeguards in place for funding and loans, the government risks creating a moral hazard in which schools charge students expensive tuition fees without offering them marketable skills in return. The claim has generally been used to justify cuts to public higher education spending, tax cuts, or a shift of government spending towards law enforcement and national security. There is a further concern that having an excess supply of college graduates exacerbates political instability, historically linked to having a bulge in the number of young degree holders, a phenomenon known as elite overproduction.