I feel that I am being pushed to be pro or anti trans rights. For me it is a much more nuanced discussion.
I think this is a false dichotomy. Very few GC feminists are anti-trans rights, if by trans rights we mean that trans people should have the same human rights as everyone else.
The issue is the demands that trans rights activists are making, namely that trans people should have more rights than everyone else, for example the right to decide which toilets and changing rooms they use, and which sports categories they play in. The rights they are demanding clash with women's rights - the right to single-sex spaces where appropriate, and to far, single-sex sports.
Do I feel that people with body dis-morphia should be supported and treated well?
Yes, in the sense that there may be psychological help that will avoid them proceeding down a medical route, with all the problems that brings - this is particularly the case for youngsters, most of whom seem to grow out of their gender distress after puberty.
Do I feel that all people who identify as trans are sexual predators?
No. Many of them, probably the majority, genuinely just want to get on with their lives. But as a group, they seem to commit sexual offences at a higher rate than non-trans people.
Do I feel threatened if there is a penis in the cubicle next to me when I have a wee?
I do. Or at the very least, I feel uncomfortable about it, knowing that he might be a danger to me. Or that he might be doing what other posters have said, eg looking for used tampons in the sanbins, masturbating at the thought of being in a woman's space etc.
Do I feel that someone I know - who has now been living as a woman longer than she ever lived as a man, should be able to use female pronouns and spaces?
I think such a person can request it, but does not have the right to demand it of others. I would comply for someone I knew well, or a colleague at work, or a customer at work - the last two partly because I'd probably get into trouble and possibly lose my job if I didnt.
As regards what "living as a woman" is, since several posters have disputed this is possible... I would say a man who wants to be regarded as a woman, uses a woman's name, and dresses in a way typically considered female.