every first year university student understands these basics of supply and demand -- the novelty and value proposition of the S and X has lost its novelty -- early adopters have adopted, and the flow of mainstream customers is choked by the limitations of Tesla as a vendor. It's all loosely termed "capacity to execute." Tesla has to resolve the ownership experience in order to draw through mainstream customers. The sales cycle includes "overcoming customer objections" (e.g. missing features like parking cameras, observable build quality defects, unsatisfactory value proposition, uncertainty such as charging and range) which Tesla continues to try to overcome with reality distortion field marketing (something Apple still does, but Tesla hasn't figured out the cult-of-Steve.)
The S and X are both great cars, but they have shortcomings and they don't meet customer expectations, so they don't sell beyond the niche 1% of enthusiast EV early adopters.
Make an X the same (price, performance) as a Ford Expedition or GM equivalent and it will sell 10,000 to 20,000 units instead of 5,000. That's all there is to it.
Even a Mercedes GL-something sells twice as many as Tesla.
Tesla simply doesn't have the product design and features that customers buy.
It's not something that Musk and Tesla don't know, they just don't have any way to fix the problem.
Even Porsche is laughing now -- their "sales have plummeted to lowest ever" Macan out-sells the Model X.
Tesla can't stand still for 3 years and keep saying "we're the leader!"