It's all bollocks, of course. There are hardly any jobs in Science or Mathematics, not really that many in Engineering, and among "Technology" the only genuinely massive sector is software ('eating the world', or so I hear).
So in reality what this massive "STEM" push amounts to is an excuse to trick children into wasting their time going thousands of dollars into debt getting useless degrees in mechanical engineering or mathematics before they can attend a Javascript bootcamp to become actually-employable.
If you are any good at mechanical engineering or math, you can find a job in those fields. If you're not very good, learn Javascript. It works itself out.
So in reality what this massive "STEM" push amounts to is an excuse to trick children into wasting their time going thousands of dollars into debt getting useless degrees in mechanical engineering or mathematics before they can attend a Javascript bootcamp to become actually-employable.