“Of course they are skilled...CPAs, lawyers, engineers of all kinds, IT techies, etc. !”
It is far easier for a CPA, lawyer, doctor or engineer to migrate to a new country as their economic capital is their intellect.
Farmers must have to capital and ability to buy land when they arrive in their new country.
OTOH...lawyers from other nations ( hey..even born, bred, and educated here Americans, from other states, MUST take and pass Bar exams, in other states, should they move, in order to practice there ) won 't have it easy here.