A quarter of US-trained scientists eventually leave

Perhaps it is a good thing that innovation is not encumbered by patents as much in other countries as it has been in the US.

We need a well managed set of immigration polices or country WILL take advantage of US. These are our military rivals and we sell our most advanced math, physics and engineering seats to the highest bidder. It’s a self districting disaster and it’s not just on us to treat people better.

Look at the rate of Indian asylum seekers in Canada to see the most extreme case. It happens anywhere you extend naivety and boundless good will.

A person arrives on a 18 month funded postdoc (believe me, plenty exist). They have just completed a PhD which means they probably have a couple papers published and maybe another one or two in the pipeline. So as they spin up their time with you, they are also finishing these papers from their previous job. By six months in they are done with that and fully onboarded to the project. So they spend six months working. But now, they only have six months left of contract. You don't have money to keep them or perhaps your country will require you to offer a permanent contract if it is being renewed so you cannot offer them to extend their position with you. So they spend the final six months of their postdoc looking for a job. So, for 18 months of salary, you get six to eight months of work. It's unreasonable. Things need to change.

Or lets say you have a mission critical project that must be done by a postdoc. You offer them a 3 year contract that is grant funded. It is three years because most grant agencies work on three year cycles. The project requires a year commitment to building an apparatus (maybe its a lab experiment, maybe it's training some foundation model, whatever). After that year, the apparatus can be used for science. Your postdoc comes to you in year 2 month 3 and says, well I have been offered a faculty position at university X so I am leaving in the fall. So you get 18 months of work out of them and now cannot hire anyone else because you only have 18 months of funding left, but your country requires you to offer a minimum of 24 months contract. Things need to change.

It's important to note that academics often keep projects from their former positions going at their new ones. But as soon as someone leaves to industry, this falls apart. Because industrial positions expect the person to work on the project they specify, they rarely hire someone to work as an academic, pursuing their own research directions.

I think the solution here is as others have suggested, spend more money on hiring people for longer term and with higher salaries. But we shall see if anyone listens to that advice.

In fact, a huge number of the people that are in that class would resent you for classifying them in this way. And the same is true for those in the upper middle class, or elites.

Secondly, trying to scope the xenophobia problem to just the working class is itself a bit of a misdirection. Plenty of that comes from the swaths of upper middle class white collar folks. And plenty of it comes from second gen immigrants who are eager to be counted among the natives.

The xenophobia _is_ the substitute American culture provides as a filler for the vacuum left by the lack of any sort of class identity. Everybody falls over themselves demonstrating how they can be "more American" in one way or the other. Who is a "real" American, what their qualities are, whether this particular thing or that particular thing is more or less American, etc. etc.

It's an alternate focus to direct all that shame the culture demands from the poor.