During WW2, Jewish French citizens also had their citizenship removed...and sent to concentration camps.
DOJ announces plans to prioritize cases to revoke citizenship
Denaturalization is a tactic heavily used during the McCarthy era and one that was expanded during the Obama administration and grew further during President Trump’s first term. It's a tool usually used in only the most serious and rare of cases: dealing with Nazis or war criminals.
Read in NPR: https://apple.news/AUPtfl-pqSDu3JTuSPUx1pw