Most people don't understand that controlled immigration is net positive for the economy because they don't understand the facts and just listen to politicians.
Never forget, half of the Fortune top 100 companies are founded either first or second generation immigrants.
As far as educated workforce it won't happen in this country where a tradesman(not that anything wrong with it) makes more money than an engineer or a physician who are drowning in student debt like my daughter in law who is still paying for her med school after 10 years.
Why educate yourself when you can make more money without one?
However in the long run when your best and brightest stop becoming engineers, doctors, teachers, lawyers economists, etc.. you realize it's too late.
That's what's happening here and I think we're on an irreversible path.