With respect Paul, Beat Boutique is not a soul night as we know it although full respect to the guys for getting the music out there.
To quote your last post, it is not 'what a narrow music policy prescribes' so much as what the venue prescribes.
The style of music you champion is not typical of what allnighters on this scene are about.
I have listened to what you play and although there is the odd track I like, you would be the first to admit that it is not to my taste.
This is where the small rooms come in. They offer something different. Small rooms do not carry allnighters. If they did they would be the main rooms.
I hate to say it but if you are looking for a scene to accept the style of music you like then I have a horrible feeling this isn't the one to do it.
It has nothing to do with whether the music is good or not. Just that it is not right for this scene.