It’s just one horseman rather than four, but it certainly portends apocalypse: A bronze sculpture of former Secretary of Homeland Security Kristi Noem — who spearheaded Trump’s deadly immigration crackdown in Minneapolis — was just unveiled in South Dakota. She’s depicted in full so-called “ICE Barbie” attire, because that’s the kind of year we’re having. The Medina Triennial, thankfully, is a breath of fresh air. Sara Reisman visited the New Yo…