No one’s nailing it, but IMHO we need the flexibility of Canada’s system (no need to go to Congress to raise or lower visa allocations) and the humanitarian instincts of Spain (shout out to them for their latest expansion of status).
What’s the best set of immigration laws in the world right now? Who’s the most welcoming, the most efficient, most humane? Who isn’t in a race to the bottom for a Stupid Third Reich?