Disclaimer. I do not know Tesla too well. Though I do not think it necessary
Here are my thoughts.
1. Tesla is highly marketing. The technology though great is highly exaggerated. Elon personality.
2. The other auto brands are not dumb. It cannot be they are doing nothing and let Tesla run away lead. Facts have shown their EVs also gaining market share. See Apple, Samsung, Xiaomi, other brands. Apple is only only 22% smartphone. And I will argue Tesla cannot do better.
3. Tech advance so what. Other auto makers can throw money to buy your talents and know how. Tesla will not monopolise most of the tech.
4. EV still depend a lot on other factors, infrastructure for one, battery is another. All these can threaten Tesla survival. There is risk, imagine some country do not want to export some thing, chips or batteries or raw materials.
5. Countries will protect their auto makers, Germany China, they can tax Tesla or prejudice the market such that their own local industries and people gain more overall. Tesla sales will definitely not be great in many countries. Even it it does ok.
Just thinking macro and bits here and there. I dont know why Tesla HODL fanatics are so silly. Be aware of the risks bah. Not to mean I look Tesla down, it still have good chance for doing very well. Just that I see many risks.