be european
meet a jew whose family has lived in your country since medieval times
call the jew a foreigner, not polish or german or swedish etc.
be european
meet diaspora polish (insert any euro ethnicity) american who has been in america or canada for 3 generations at most and hwo wants to move to his ethnic motherland
you call him american, not european anymore, not welcome
if jews don't assimilate for 500 years, why do you assume that diaspora assimilates in the new world in less than 100 years?