In case you hadn't already seen it, the BBC has done an article in the news magazine about British preppers, and the Victoria Derbyshire show did a segment on them this morning.
The article is here, and the video is here.
I thought the article was pretty good, haven't had a chance to see the videos but part of it is talking to a guy who says he runs the only preppers store in Europe and thinks the confederate flag is a positive symbol, so my hopes aren't particularly high for it. 