It was always called Turkiye in Turkish.

I promise to use it in English as soon as Germany becomes Deutschland and Japan becomes Nippon.

Making a joke about something is not necessarily "making light of it". It can be a way for an individual or culture to approach and digest a topic that is too difficult or painful to engage with directly.

First responders and medical professionals famously often have a sense of humor too dark to use around outsiders without causing offence/outrage(like what happened here), but I'm quite sure they are not "making light" of the loss of life and terrible injuries they face and fight.

Ethnic cleansing is what Azerbaijan recently did to ethnic Armenian citizens of Azerbaijan (expelling them and stealing their homes when they fled to Armenia). What Turkey did was straight up genocide (forcibly marching them through the desert where many died)

Oh fuck off. My grandfather survived the Nazi occupation in southern Russia, was playing Hitler in the school theater comedy some 5 years later.