re: Why does BR care if an unincorporated area forms their own city?

Analyze what Baton Rouge is doing on a tax revenue per resident basis, and you will see that the Metro Council is screwing over the residents of the unincorporated areas for the specific benefit of Baton Rouge residents. It will not take long before the revenue available for the unincorporated areas will be insufficient to fund decent services. Do you think the St. George Fire District can maintain its current level of service losing the tax revenues from the properties recently annexed by Baton Rouge and soon to be annexed?

The infrastructure in the unincorporated areas will suffer from less money available for maintenance, to say nothing about money available for improvements. The schools will not be the only issue for the residents of the unincorporated areas then.