Sadly, racists are not created by magical thinking. Neither do they evaporate if we don't talk about them or where they came from.
There was austerity. The struggling for dwindling resources. Desperation and deprivation breeds resentment. But racism was pretty unacceptable socially so the polite classes didn't think we had A Problem.
Then there was the harnessing of that poverity and resentment to the Leave agenda - a calculated move for political gain. The Leave campaign flirted with racism and had a very sizeable racist fringe element (debatably more than fringe) but the stated goals of the official campaign were not in themselves racist, nor did you have to be racist to support it. Nevertheless many were.
Then Leave won and those who had been encouraged (by Farage and others) to support the campaign on a racism ticket thought they'd won. Not unsurprisingly, a lot of people suddenly thought racism was ok again.
Then we had the racism, the violence and the bigotry. People scared to go outside without their passport.
To anyone from Northern Ireland, this is all so very, very familiar. The politicians and the middle classes can wash their hands of the bigoted element all they like but it's impossible to distance from them entirely because their support was needed to get the vote. Their support was borne out of their resentment against others, which was borne out of suffering and deprivation. Although I don't altogether blame Cameron for his austerity measures because he was faced with a very difficult job for the country, it all began right there.
If we are all so very principled and moral and nice here, can't we focus on the real victims (none of whom appear to be on mumsnet)? Our country's descent into hatred and bigotry is the only real disaster to have unfolded so far post-Brexit. If things keep on the way they've started, it may become hard to imagine anything worse that could have happened to us. Personally, I'm ashamed to be British this week and I'd like to do a bit more than wearing a safety pin to show it.