For me it’s pretty simple: I consider anyone who wants to weaken the US Military to be my enemy.
It weakens the US military when it kicks out competent people who have language skills that are desperately needed and in short supply. Many of the jobs requiring these languages are stateside jobs that don’t involve living in barracks. They involve working in an office translating intercepted communications. I don’t want Americans — including American military service members — getting killed because our intelligence translators are months behind in translating intercepted communications, because needed staff has not been hired and has been let go, due solely to what their preferred sexual activities are in their personal, off-duty time.