Hal Dempsey wanted to “escape Missouri.” Arlo Dennis is “fleeing Florida.” The Tillison family “can’t stay in Texas.” They are part of a new migration of Americans who are uprooting their lives in response to a raft of legislation across the country restricting health care for transgender people. Missouri, Florida, and Texas are among at least 20 states that have limited components of gender-affirming health care for trans youth. Those three states are also among the states that prevent Medicaid — the public health insurance for people with low incomes — from paying for key aspects of such care for patients of all ages.