However, i think few of the men who say they are happy to shag in these categories believe they are planning to shag women.
I think there's a substantial minority of men who are happy to shag basically anything. A sex doll,a sheep, a hole in the wall. Why would they care what gender ID a person had so long as they have an orifice (any orifice) that can be shafted?
Sorry for being so crude. But I think it's true.
I've seen quite a few "any port in a storm" type comments on threads in dubious places like reddit and Kiwi.