As for "Kholy" being a Russian invention to insult Ukrainians, here is a video from Zelensky's "Servant of the People" TV series, in which he played a school teacher, who was elected president of Ukraine. In this sector, he is already the president of Ukraine. He talks about what it means to be a "lawyer". in Russian! As you may remember, the term "hohol" has been around for hundreds of years and is usually used without a negative connotation. Here is another translation from that show, where a plan is created to make Ukrainian people fight over the language.