The point I'm trying to make is a serious one, about how we conduct political debate. I accept that many people find Farage's views deeply unpleasant and generally I'm inclined to agree. But I just don't believe that exempts anyone from the duty to conduct debate with him in a measured way, and to stop short of subjecting him and his family to harassment while off-duty. Because he has done nothing wrong in holding the opinions he holds. Really, he hasn't.
If we abandon the principle that says no matter what someone's views, we debate ad rem rather than ad hominem and leave people's private lives out of it, what then? What happens when we find that the same principle - holding certain opinions disqualifies you from being treated with courtesy as a fellow human being - to your opinions? I'm not going to invoke Godwin's Law, because that would be hysterical, but I really think the importance of this shift in popular morality can't be overstated. It should be a point of absolute principle that basic courtesies hold, no matter what someone's opinions; that people can be called to account for how they behave based on their opinions, but that simply holding an opinion cannot and must not be punished.