So you were asking if there was a circular square or something to that effect?
Let's not forget we are talking about human beings being human here, we do think with our emotions as the intuitive machines they are, and then we try to rationalize them into a coherent argument. When we can't, it's a good hint our emotions are wrong, etc., but still, lets us not forget their usefulness, and not dismiss them if you, again, feel them to be bigoted at its core.
I do think that the fear of your own home, place and culture being overwhelmed by a foreign one for which there is little acknowledgement of its sophistication is a real one. Urban dwellers will find this fear a tad alien (no pun) because they already live in a city, that is, a homeless place filled with a multitude of multicultural masses, but they should not be smug or condescending about it. People like change but not revolutions. People don't mind immigration but they do worry if at a certain point their own culture will fail to integrate these people, leading to horrendous mismanagements like Rotherham, or the acceptance of sharia law within the UK, when there should be only one law, etc.
Are the solutions to be "racist" and so on? Well, this is the wrong question I think. I think that if you abolish any possibility of having this discussion in a civilized, rational and calmed manner, the discussion will once again go underground and feed from bigger paranoias and hatreds. The only parties that won't mind being called racists for having this discussion will be the only ones doing it, and they will be the racist parties themselves. And if these parties are really racist and nevertheless get so many votes themselves, then that's not the fault of the voting population per se, but of the political intelligentsia which was absolutely unable to represent, reason and solve these concerns, but instead buried them with the fear of being called out - yes, this is the true consequence of "political correctness", it doesn't solve inherent hatreds, it just stops reasonable political conflicts to be solved through legitimate means, which then raises tensions and furthers hatreds and creates whole problems by themselves.
So, by all means, demonize the UKIP as you want. I have little knowledge of them myself, I just find it funny that in the same breadth that you condemned the media for having created a huge fearmongering surrounding Labour before the elections, you just trust it to be fair in its condemnation of UKIP. But my point is this: demonize them. All you want. The only thing that you'll be achieving by doing this is to bury UKIP and substitute it for something even worse. I mean, it's not as if Europe is doing all of this **** all over the place. Just look at France. Or, alternatively, look at Greece, where europe is saying Syriza is a bunch of irresponsible radicals that will waste money like hell. Well, that will work. Instead of talking to them, instead of having a productive conversation to solve these issues, why not tell the Greek electorate that Syriza wasn't enough? Perhaps they will tire themselves out as well and elect Golden Dawn. Now, unless you're of "the worse the better" inclination, you'd see the folly in doing that.
People are even too afraid to be seen talking to each other, lest they be accused of "guilt by association" (the extreme left loves these pathetic games*), let alone talk about these issues. Well, lets us remain shut up then. That will solve everything.
*I'm being unfairly wrong here. The right also does this ridiculous game, albeit it doesn't "love it", it's just ashamed of it. Just look at the pathetic dance around more right wing governments talking to Syriza, politicians afraid of coming in support of their ideas lest they be accused of being irresponsible communists as well. I see walls being built everywhere in our political conversations. That american graph where they showed increased balkanization of american congress throughout the years is just another evidence of this fact. This trend seems to be universal and scary. I have no idea where this will take us, but if you remember that violence is usually the consequence of an impotence of communication and negotiation, the future does indeed look bleak.