Practicality
Every human being deserves a degree of respect, and that degree of respect should be based on who they are, not what they are.
The example of a Muslim and a Church, or any inter-faith combination is perhaps an example of how misunderstood mainstream religion actually is. The vast majority of us aren't at each others throats, and we would make provision for other faiths, churches often change use between religions, there are examples of churches that have become temples and synagogues, mosques with the blessing of the previous faith. Yes, there are people who don't like other faiths, or aspects of them, even hate, but not that many, but they are news, being nice and considerate isn't.
Where we have to be careful is that we don't put ourselves in the position of making respect for some a reason to stop the enjoyment of others. the promotion of rights for one group, curtailing the rights of another. A question that a lot of minority campaigners should ask themselves before they act, if I do this what will I take away from everybody.
What will happen when the new legislation comes into force is that minority campaigners will look for some high profile targets to attack, with the aim of promoting their cause, raise more support and money, and making life "better" for their group, and probably worse for the rest of use, in other minorities. What they won't do is say, well that's unreasonable to do just now and we'll help that organisation to comply over time, manly because campaigners don't see other peoples point of view, and don't values the opinions, belief, pastimes etc. of others, and who is going to expose themselves to the vitriol levelled if they dare to say, no that's not reasonable.
So is it reasonable not to do something because you can't do it for everybody, and remember can't is different to won't.