Not hardly.
Lex Luthor can tell a series of coherent, consistent lies with a specific purpose.
Lex Luthor can construct and execute short- and long-term plans.
Lex Luthor is a culturally-literate adult with a working knowledge of US and world history.
Lex Luthor has read the Bill of Rights. He might try to subvert some part of it, but he has read it.
Maybe a brain-damaged Lex Luthor.
Frankly if some Lex Luthoresque supervillain or Hydra type organization announced it was taking over the world I suspect most people would just breathe a sigh of relief at the moment. Wait, Trump, Johnson, Brexit, Covid 19, it all makes sense now! I'm off to the conspiracy theories section!