Model 3 was designed to be the value leader for Tesla and continues to do so.
It is the best "bang for the buck" and many feel it looks better than the SUV model Y.
That being said, the Model Y will ride the American SUV wave of desirability. It has far greater capability, space and a higher hide height.
Those are are the reason that Americans are making them their choice, even though they are less efficient, not as good looking and more expensive. This applies to not only Tesla, but all the other manufactures.
The 4 door sedans are falling out of favor, even while costing less, using less fuel and offering better handling and "fun driving"
For a single person or even married couple who have no kids, dogs, nor the need to carry bicycles or sports equipment or make large Costco runs, the 4 door sedan can still offer the best value.