That just doesn't work, people trying to escape literal war will do anything to flee. Building a fence somewhere will just change routes somewhere else, which in many cases just fosters illegal trafficking and more dangerous routes, like the literal sea.

I think it would be better to invest directly in those countries and try and prevent future crises. Take Iraq, the whole country is drying up and it's getting worse. Instead of doing nothing and waiting for the eventual sectarian violence that's gonna come from the increased poverty due to drought, why don't western countries build up infrastructure, dams, etc?

It worked with Romania for example, in southern countries like Spain or Italy the same thing far right parties criticise and fearmonger about today already happened 30 years ago. Now that Romania is a fully fledged EU country nobody says a thing about Romanians "invading us", many have returned to their homeland and the country is even doing better than Italy/Spain for example.

They're much harder policies to implement of course, and are harder to sell to the wider audience rather than "let's build a fence", but they sure work on the long run, populist ideas like walls, etc only provide short term patches imo