I think the sad part is the club was a place you enjoyed to go and now can't cause of idiots.
There were many clubs and bars that I can't go into or was hassled in some way or another. But that was usually when I first went to a bar so there was no emotional attachment to the place. I don't disagree with you about rednecks and such but don't be misguided, there are places up north that a CD just can't walk into and feel at home. there were places where I lived in Baltimore that I knew I would be in trouble if I went there. And it wasn't rednecks. I kinda wish they were rednecks. Even CDs in NYC probably don't venture to bars in the Bronx and I am probably sure the same goes for UK Cds going to Mid Eastern establishments. There are places everywhere that people won't feel welcome or have some sort of confrontation with others, it's not just a southern thing. While not violent, gay bars were the worse places I went to, totally ignored the whole night. I now live in a sort of redneck area. Loud pick up trucks. For the most part people leave me alone, though i don't go to bars and clubs anymore. And I have miles of forest where I can enjoy, no need to worry which door to go through.
As I said, the sad part with your experience was that you had fun at that bar. And now it's gone, then again some bars close down and one can no longer go to them. Hold your head up and find a new place or a new type of experience to get enjoyment from.