modeller, perhaps most of the Christians are out enjoying the good weather, or perhaps they know that anything they say is likely to attract the usual litany of "fairy tale", "deluded", "indoctrinated" and the like.
As for the video itself, no I haven't watched it, it's really not my kind of thing. But has it occurred to anyone that the lad might actually enjoy singing and might actually like that song ? I realise that notion may be difficult for some people to understand, but it is a possibility.