Quite recently, a Muslim boy in my DS's class was reduced to tears because he had read a comment on social media to the effect that all Muslims love guns. His classmates - representing a mix of cultures and creeds - rallied round to comfort him. But these are sensitive and intelligent boys. There are many individuals who, quite wrongly of course, conflate Islam and terrorism.
Not so long ago, a Jewish friend told me that she senses a growing anti-Semitic sentiment around her.
There does seem to be a feeling of fragmentation and a lack of trust amongst those with different belief systems, even here in the (relatively) strife-free and stable UK.
I think you are already doing a wonderful job, OP, through the simple act of offering a nod of recognition, a smile or a hello to all. It may not seem like much to you but if everyone were to adopt this habit, the cumulative effect would be deeply significant.
Moving on from the individual level to the community level, I do have a vision of how tolerance and friendship might be fostered.
In response to the decline of Christianity in this country, I would like to see some churches diversifying and becoming centres of enlightenment for all – by which I mean central hubs where people of all faiths and none can come together to share thoughts, worship freely, attend lectures on religion, philosophy and science, break bread together, pray or just sit in quiet reflection and also find ways to work together to care for the sick and vulnerable within the community.
No, I don't know where the funds would come from. It's just what this idealistic dreamer would like to see happening as a way of bringing more cohesion to our beautifully diverse but fractured society.
(By the way, I'm an atheist.)