You left out the part about turning to fascism. Anyway, none of what you mentioned helped immigrants nor resolved the reason for their immigration, so it seems more like the least sensible being that it was a complete failure.
> The rest of the governments mostly pretended the problem doesn't exist.
Excuse me? This isn't remotely true. It was the main topic for half a decade. We housed, clothed, fed and educated millions of people in need of our help and it was an amazing success!