GOSHEN, Indiana — The sermon had been preached, the last prayers offered. Now, Mike Yoder decided, the time had come to share unsettling news.As congregants at Silverwood Mennonite Church chatted around a potluck spread, Yoder, a Republican county commissioner, huddled with Pastor Jeremy Shue. There was a good chance, Yoder confided, that a 1,200-bed immigration detention center would soon rise north of town.“One of the only positives is that it would be less of a drive to protest,” Shue said.Yoder had …