@SerendipityJane
Islam ... is specifically presented as a guide to all aspects of life. There is no ... division between the sacred and the profane [and] it requires full control of every Muslims life. Now as with Christianity there are a spectrum of views on this. However unlike Christianity they cannot be reconciled with a secular state.
There are many devout Muslims in the UK who don't break the law, don't proselytise, and accept that in this country there are multiple beliefs and unbeliefs, with a degree of honest dialogue between them as to what constitutes a good society. Why is this not secularism? Is there a universal tenet of Islam that British Muslims are disobeying?
I'm interested in this because of the contrast with transgenderism, which I view as inherently irreconcilable with secularism. Transgenderists expect the whole of society to obey their belief-based rules, and the organs of the state to proselytise on their behalf, and think that expressions of doubt, disbelief or debate are intrinsically objectionable and therefore lie somewhere between unprotected belief and an actual crime.
The problem is that an unfalsifiable metaphysical proposition has been written into the law, and it's about humans themselves, who can then claim to be injured by mere demurral.
I can tell my Muslim colleague that I'm not a Muslim and even maybe tell him politely why not, and he won't throw a fit or confiscate my bacon sandwich. But just try telling a transgenderist that you're not one of them, so won't be mis-sexing anyone or letting them into the wrong changing room, and see how far it gets you.