Objectively, Zelensky is a menace. There is no good reason for name calling and insults against those who point that out. That isn't me disagreeing with your statement, that is me expanding on it.
Just how is Zelensky a menace? Does he control a stockpile of nuclear weapons aimed at the US, as Putin does? Has Zelensky threatened the US or an ally of the US, as Putin has done?