I think the problem is that Hayton is a hypocrite. As an example, Hayton's passport says "F" for female, which doesn't make any sense if you are going to adopt the "trans women are men" line.
It's difficult to quite understand the motivation, but it probably comes from an internalised self-loathing, and then turning that outward. It's the sort of thing to be pitied, rather than admired. Oh, and given that basically Hayton is the go-to source for most media outlets on transgender issues, I wouldn't be entirely surprised if it was attention-seeking on some level.
It seems to me quite revealing, though, that you did some at best cursory research in order to find one of the very few transgender people who agrees with you, and in the process ignoring the far vaster number who do not. And quite revealing, too, that you thought that Hayton's existence and views might be somehow news to me.