The Ethiopian jews who were interested in coming to Israel were smuggled out of Africa by the Israeli government in Operation Shlomo and Operation Moshe, at great risk to everyone involved, and with great courage, ingenuity, and resourcefulness by all the people involved. On the whole, they have been accepted with open arms by the rest of the population. They have also entered all aspects of public life, including membership in the Knesset (Israel's parliament).
We know that the media tend to distort any event in order to "create" news. So it was with the particular incident of the “Ethiopian woman used conversion to bring non-Jewish husband to Israel”. The issue was strictly one of religious laws and restrictions concerning conversion to Judaism, regardless of race or nationality.
Any connection of this incident with "Nazism" is totally imaginery.