Frontline is known for its political bias and is far from an objective source. An honest look at the evidence at best says that he may have been gay. I've read all his biographies and books by agents who worked with him and it's just not conclusive. As for him being blackmailed for being gay, that applies only if there was strong evidence and there never was. A stronger case for blackmail could have been made against JFK bedding an East German spy.