Igor Volsky writes that the military's survey on how receptive service members will be to repealing "don't ask, don't tell" will show "mixed support" for ending the ban on gays and lesbians openly serving. He cites an appearance by Mark Thompson on The NewsHour in which he states, "The sense I’m getting, talking to insiders, is this basically breaks down into thirds. A third of the body politic doesn’t care. A third opposes it, and a third is an advocate for lifting the ban."
If that's true, then there's substantially more support for lifting the ban than there was in the 1945 survey done prior to President Harry Truman integrating the military:
The possible exception could be Marine Commandant James Conway's understanding that 95 percent of Marines are opposed to lifting the ban. Few people would argue today that these attitudes would justify keeping the military segregated, or racism in 1945 was somehow less virulent or widespread than homophobia today.