Many Women, Young People and People of Color Are Motivated To Organize and Vote by the Drumbeat of Gun Violence. Originally published by The 19th This column first appeared in The Amendment, a new biweekly newsletter by Errin Haines, The 19th’s editor-at-large. Subscribe today to get early access to future analysis. Students shot to death at a Christian school in Tennessee. Employees killed at a bank in Kentucky. Black teenagers killed and wounded at a birthday party in Alabama. A 16-year-old boy shot in the head in Missouri after ringing the wrong doorbell. A 20-year-old woman killed after pulling her…