For the third passage, he was not comparing the USA in general with Germany in general. He was comparing the stagnation of progress in theoretical physics:
Dirac is here, which benefits the physics here greatly, although it does not remedy the depression of theoretical physics. —
...
The general depression that prevails here and is certainly sufficiently well known to you, nonetheless, measured by European standards, it is still “God’s own country”. Somewhat frightening, though, is that it looks roughly like Germany in 1927, so that one does not quite clearly see whether the amplitude of the depression is different, or only the phase. Perhaps it is the amplitude after all.
In February I will be back in Europe, and at the end of April in Berlin.
For the third passage, he was not comparing the USA in general with Germany in general. He was comparing the stagnation of progress in theoretical physics: