The truth is that there are Trans attracted men out there. Many are very conflicted. There are a lot of variables involved. Some of it has to do with how outwardly Trans a woman appears. In fairness, society still has a problem with that, so it’s not just the men. If Trans appearing women were more widely accepted I think men wouldn’t feel as conflicted about having an open relationship with them. Speaking from experience, my prospects improved as I became more Cis in appearance. I’m not saying that’s the goal nor should it be. It’s simply the current status quo.