Propaganda.
Why have they fallen for Kamala?
Same answer. The German press have openly favoured Democratic Party presidential candidates for decades; they are invariably portrayed as wise, forward-looking and beacons of hope for the future. Republican candidates since Ronald Reagan, meanwhile, are ridiculed as dangerous, incompetent and stupid. Trump merely added new hysteria and urgency to these old, long-standing tropes.
The BBC covered Trump negatively 75% of the time and the Financial Times covered him negatively 86% of the time, but the ARD (German Broadcasters) were by far the most extreme, directing fully 98% of their Trump stories against the forty-fifth president.
In their absolute anti-Trumpism, ARD outpaced even American media like CNN and NBC (92% negative), to say nothing of more “serious” press like the New York Times and the Washington Post (87% and 83% negative, respectively).
Even that is only a partial picture, because you have to remember that there is no major opposition media in Germany at all.
eugyppius
"In the discussions to which this interest has given rise and in the arrangements by which they may terminate the occasion has been judged proper for asserting, as a principle in which the rights and interests of the United States are involved, that the American continents, by the free and independent condition which they have assumed and maintain, are henceforth not to be considered as subjects for future colonization by any European powers. "
-- James Monroe, speech to the US Congress on December 2, 1823