I want to explain a few things and then it might be clearer why UK trans people are upset.
In 2001 I married my wife, Sylvia.
In 2005 I started medical transition. For the state to recognise this I had to submit to standards of “care” which were humiliating, degrading and which placed me at risk of violence.
But I did it “by the book”
As I did it “by the book”, the NHS agreed to reregister me as female, which makes sense because my anatomy now is.
In 2007 I had sex reassignment surgery. This had to be signed off by two mental health professionals, “by the book”, and it was.
In 2008 I applied for gender recognition. This involved signing a statutory obligation, stating that I promised, BY LAW, to live fully as female for the rest of my life. As this was done, “by the book”, the government promised that it would treat me as such.
Its first act as treating me as female was to annul our marriage because it was a same sex marriage and those were not allowed.
The state then reissued my birth certificate, correcting the “mistake” it had originally made when it recorded me as male, “by the book”.
In 2009 Sylvia and I married for the second time, in a same sex civil partnership, which was done “by the book”, because the state regarded me as female and I was bound by law to be female.
In 2013 we married again, because the state decided that same sex marriage was in fact allowed after all. This was done, “by the book”. Despite having been married for 12 years, we had to submit ourselves to individual questioning to prove our relationship was genuine, “by the book”.