What does this tautology offer to the topic? Common sense obvious true, not every STEM graduate is universally qualified for every open position. So ... ???
> And even then, STEM graduates are not automatically going to move to any random place in the US just because there is an open position there.
Again, common sense true. So ... ???
> Lastly, if an employer has an open position, they are not going to wait indefinitely for a candidate to show up.
OK, true. So ... ??? Is your assumption then that they would have to wait indefinitely and that no candidate would ever show up? cited evidence of this is appreciated. Links to studies, large amounts of unfulfillable postings are welcomed.
> Furthermore, because of the additional legal costs involved in hiring H1-B candidates, they can be more expensive than a local citizen.
So ...?
Nothing stated above bears any light to the argument (flawed or otherwise), it's just a sequence of common sense things that one can say about a labour market.
This topic's referenced article is specific in its position in claiming there is no shortage of STEM qualified applicants and presents cited statistics and studies. If you have counter data and studies, please present their facts and cite links.