UCLA public health officials highlighted a report Monday finding that up to 1 million Latino Californians could disenroll from Medi-Cal because of immigration-related fears under new federal and state policies, including as many as 380,000 U.S.-citizen children. The report by the UCLA Latino Policy and Politics Institute examined how changes under H.R. 1, a new federal public-charge rule and California restrictions on Medi-Cal enrollment could a…