If people are now entitled to choose their own pronoun and gender identity, why not other parts of their identity?
For instance, if I were to announce that I am now 23 and beautiful I should be treated as such?
If I were to decide that I am now Irish I could keep my EU passport after Brexit?
Or that my friend who is under threat of deportation should be entitled to a British passport simply because she self-identifies as British?
How would you define your true self (which others will now be legally obliged to respect and acknowledge?)