They are remarkably close to being able to push the “ethnic cleansing” button. They have stated their motive, they are close to achieving the means (their popularity is not far behind what Nazis were when they took power).

https://www.dw.com/en/germanys-far-right-afd-marks-10-years-since-its-founding/a-64607308

https://www.zeit.de/gesellschaft/2018-04/germany-talks-experience-report-meeting/seite-2

A personal anecdote: in 2020 entertained a German visitor (who never offered up a party affiliation, but it can be inferred) for a few hours at a bar. They managed to convey all sorts of political views supporting suppression of others but stopped short of directly calling for genocide. However any reasonable conversationalist would understand what they meant. The closest thing I can think of for this in English is “dogwhistling”, however I am convinced there is a better German word for it.