Robotaxis and humanoid robots may grab the spotlight, but Tesla's EV business is still holding up the entire production.It's becoming fashionable to say that Tesla's (TSLA +3.06%) electric vehicle (EV) business is losing importance. Growth has slowed, competition has intensified, and investors increasingly talk about robotaxis and humanoid robots as the company's "real" future.That framing is understandable, but it's also incomplete.Tesla's EV business may no longer be the star of the story, but it remains ...