This has actually been shown true. A good example is looking at what would happen if you removed the Chicago metro from Illinois. Why would that ever happen you say? Because we have 20+ rural Illinois counties represented by Republican politicians who actively campaign on such a separation and claim that the rural areas are subsidizing liberal elites in the city. In reality, removing Chicago from Illinois would make Illinois one of the poorest states in the nation.
Furthermore, rural counties in Illinois get between $1.70 and $2.88 back in taxpayer dollars for every $1.00 they pay in. Urban and Suburban counties receive less than $1.00 in tax revenue for every $1.00 they put in.
What would happen if Illinois split from Chicago? That's the question researchers at Southern Illinois University Carbondale (SIUC) are asking in a new study. The conclusion from researchers is that a breakup would cause an economic disaster for downstate, as the Chicago metropolitan area...
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