I've never taken an economics class so forgive me, but hypothetically, what would the effects be if everyone was given citizenship today? All jobs in agriculture, construction, services, etc. would require minimum wages and benefits and the costs of many basic things would increase drastically. Imported produce would be much cheaper than domestic, making it ineffective for farmers here to compete. That would severely reduce the number of agricultural jobs here, further reducing the low skill labor market. What do you do with all these people, who now qualify for unemployment insurance? Not to mention that low income people can no longer afford basic goods and services, and housing prices would go up.

Perhaps I'm way off base, but would appreciate some clarification on these issues.