As she prepares to vote for the first time, Nirmala Singh says she can still feel the trauma of gender-based violence that’s been rippling through her life since childhood. When she was 5 years old and living in Guyana, her aunt was murdered by a former intimate partner. Moving to the U.S. as a teenager, Singh was surprised to see the same problems from back home reflected in the country she had once viewed as holding the promise for a better life. Now 26, she’s watched for years as other immigrant women in her Queens neighborhood of New York —...