The military community will likely play a huge role in the upcoming presidential election, and the internet knows which way at least one sailor will swing. A man who identifies himself as a sailor wrote a letter to Mitt Romney that popped up on the Tumblr page of a girl who says she will be joining the Marines in her profile. Petty Officer Millen writes that he is “part of the 47% that will never vote for you.” The letter also states that the sailor’s brother had a tumor removed under Obamacare and his parents were auto workers in Michigan.…