All immigration is a net positive to the economy in a number of different ways, and most of “problems” are caused by material conditions created by having classes of citizens versus non citizens. The US basically had open borders for much of its history and that’s a big reason why it became such an industrial powerhouse.
The original idea behind physical border control has more to do with espionage and sabotage than restricting immigration.
All immigration is a net positive to the economy in a number of different ways, and most of “problems” are caused by material conditions created by having classes of citizens versus non citizens. The US basically had open borders for much of its history and that’s a big reason why it became such an industrial powerhouse.
The original idea behind physical border control has more to do with espionage and sabotage than restricting immigration.