A coalition of groups, ranging from environmental activists to Native Americans advocating for their ancestral homelands, converged outside an airstrip in the Florida Everglades Saturday to protest the imminent construction of an immigrant detention center.Hundreds of protesters lined part of U.S. Highway 41 that slices through the marshy Everglades — also known as Tamiami Trail — as dump trucks hauling materials lumbered into the airfield. Cars passing by honked in support as protesters waved signs calling for the protection of the expansive preserve that is home to a few Native tribes and several endangered animal species. Christopher McVoy, an ecologist,...