Your historical narrative is false. German Jews started leaving well before the thirties. Those that stayed thought it would not be so bad, or that it would pass quickly. Germany was only hospitable to Jews for one generation. Out of more than a thousand years of hosting them.
The entire fifteenth century was one long horror story for The Spanish Jews. Things changed quickly for them once the Moslems lost control of the peninsula.
I wonder how you noticed the democrats on this thread, without noticing the republicans.