OK - I don't really have time for this, but seeing as it is your birthday. And seeing as I am interested in a reasoned debate on this issue which all too often doesn't happen. (I've been insulted here for pro-trans views before)
And please don't get hung up on the use of specific language in my post - one of the issues is that different words mean different concepts to different people so I will try to explain what I earn by the rods I use, which I fully accept may be different from how you use them.
I don't think that the world specifically discriminates against women or people with vagina's. I think it discriminates against people who are not "men". And by men I mean people who present as straight and masculine - our stereotypical view of a manly man. So I think anything that enables anyone to live and be accepted and succeed as something other than a "man" is a good thing.
I don't agree with feminists who fight for "womens' rights". I think we should be fighting for rights and equality for all people, and that within that fight we must recognise that there are groups (BAME, women, disabled, trans, gay and many others) who have been historically denied rights and therefore need more action to get them equal rights.
I think that the majority of discrimination that women face is down to the social construct of gender rather than biology. I don't see that Thatcher's premiership was a triumph for feminsim becasue she gained power by acting like a stereotypical man, as have many women in the recent past. I want to build a future where stereotypically feminine traits are celebrated as well as streotypically masculine traits, and I feel that the feminist agenda which insists on biological sex as being the key differentiating factor can only be detrimental to that.
I also have an issue with the misandry prevalent in SOME of the anti-trans voices ( I do recognise that not all people who are against self-id are anti-trans but there are many) Yes, men as a class commit the vast majority of violent crimes. But that doesn't mean that any individual man is more likely than any individual woman to be violent. We rightly abhor assumptions about an individual on the basis of race, but seem happy to do it on the basis of genitalia (and saying that woman have had assumptions made about them for years is true but doesn't excuse the same behaviour they other way). I know transwomen who could show far more empathy towards victims of violence in a woman's refuge than I could, and to blanket ban them from ever being able to so just because they used to have penises seems wrong to me.
Having said that, I do recognise (as do many of the saner voices on the self-ID side of the debate) that there are extreme viewpoints on the trans side as well and some of the crap they spout is , well, crap. An individual lesbian who doesn't fancy an individual transwomen is no more transphobic that I am racist for admitting that actually, Idris Elba doesn't appeal to me. And I do think that any person should have the right to refuse medical treatment from any other person based on anything they want without being accused of being phobic or "ist" but I don't think the right to refuse treatment based on a particular characteristic should be enshrined in law - that's state sanctioned discrimination. I think there needs to be control over who can take part in sports - but I would prefer to see that based on scientific evidence of unfairness such as levels of hormones or measured muscle density rather than the genitalia someone had at birth.