Turning Germany into a nation of immigration such as the UK has become faces Merkel with judging what the limit is without Germans feeling so alienated and deprived of their identity that they install a far-right government to forcibly remove the migrants. Oh yes, be in no doubt that the powers know that there is a tipping point - and they must keep overall immigration within it to prevent losing control. So Merkel will have a figure - probably somewhere north of a million - that is 'safe' enough for Germans to accept, albeit with some grumbling and some fringe protests.
Der Spiegel's soft left take on the crisis also recognises this
The coexistence of hundreds of thousands of Arab and African Muslims -- in addition to the millions of Turks and people of Turkish origin already living here -- will test the limits of German tolerance. The country will again debate whether headscarves should be allowed in government workplaces, whether girls should be required to take co-educational swimming classes, whether minarets can be as high as church steeples and how loud the muezzins can conduct their calls to prayer. But this is a test that German society can, indeed must, endure.And of course Farage is right. The migrant wave is of biblical proportions and the numbers of potential migrants are far in excess of the number that not only Germany but anywhere else in Europe can accommodate without violent power change and forced deporatations. So Germany, too, must find a way of closing the gate once the million or so have arrived. This is inevitable if stability is to be preserved. So take Merkel's public words with a pinch of salt - she knows a limit must be enforced at some time shortly in the future, and certainly within a year.
If, fearing the wrath of voters, politicians duck uncomfortable truths, the hatred will spread and the public will lose faith in politics. Essentially, what Germany is confronted with is a double integration process: that of refugees who are coming to Germany and that of Germans who no longer feel they are a part of their own country. The only way societal cohesion in this new Germany can be guaranteed is if both of these groups are carried along as the country moves forward.
I know Keleti pályaudvar, which with Nyugati pályaudvar is one of the two still attractive 19th century rail terminals in Budapest. Neither has yet been 'modernised' with EU money, and round the back of both are still shell and bullet scars in the masonry from the Red Army's fight to capture the city early in 1945. Round the side of the station is a structure more symbolic of the new globalism - a vast glass and steel shopping mall. Arena Plaza, complete with Zara, Subway, H&M and all the rest of the Euro trash - including a substantial Tesco. I'm just waiting to spot the first press photo featuring a Sudanese economic migrant in Budapest clutching a Tesco carrier bag ...