The terms "Jewish Question" etc. were used far before the Nazis by Balfour and even by the (most famous) Zionist Theodor Herzl himself:

https://en.wikipedia.org/wiki/Der_Judenstaat

The Nazis of course picked it up for different purposes. As always, the question is whether to outlaw entire phrases because they have also been used by the Nazis at one point.

This "$X question" case, where $X is not an ethnic group, is so generic that the accusations are ridiculous and probably just a pretext to expel someone whom the persons in power did not like. A defamation lawsuit would be appropriate.