I would have agreed with you if we were early to mid 2021. Because Tesla's margins did shrink in Q4 of 2020. Then rebounded in Q1 2021. I could at least understand the other side of the argument in that "Are these margins sustainable?".
But since then, we've not only had margins not go down, but had margin expansion from Q1 to Q2, Q2 to Q3, and Q3 to Q4. So today, anyone using those bullet points I feel is doing so in an intentional way........not because they're just clueless.
The operating margin between Tesla and legacy auto is growing wider and wider. Every analyst should be able to deduct the 350 million options related tax in Q4 to realize that Tela's operating margin was actually about 18%. Their net margin was actually more like 16.5%. Those numbers are 3-4X legacy auto.
Could be multiple alternative, more benign reasons they're still putting out absurdly pessimistic projections. Here's a few:
Status quo bias, Stagnation fallacy, Anchoring Effect --> Assuming that historical auto industry phenomena necessarily apply to Tesla and not validating the assumption even in the face of directly contradictory empirical evidence. Or subconsciously using auto industry standard performance as a drag on Tesla estimates even when genuinely trying to perform objective first principles analysis.
"It's never happened before like that, so it never will."
Lack of self-confidence and emotional insecurity --> Fear of losing job and not being rich and high-status, fear of making an outrageously bold prediction and being mistaken, fear of appearing ignorant or stupid. Safer to cower in the herd than risk going out alone for fresher air and greener pastures.
Confirmation bias / Belief Perseverance --> Intellectual path dependence, holding on to prior belief that Tesla is overrated (a belief developed during an era when Tesla's very survival was much less certain) because of only paying attention to or giving weight to information in support of that hypothesis.
Reverse halo effect, In-group vs Out-group bias, Affinity bias --> Tesla and especially Elon are clearly quite different from these financial analysts in terms of personality, character, and social norms. To them, Tesla succeeding massively would feel like an indictment of their values, principles and way of life, especially since Elon has explicitly expressed his disdain for them in public on numerous occasions. It's hard to like someone who says you ask boring, boneheaded questions and says fewer smart people should be following your career path. And in many ways, this feeling would (will) be based in reality. The Elon way is the future of capitalism and their way is obsolete and harmful.
"I don't like them, so I don't want them to be successful, so I want to expect they will lose, so I will rationalize why I think so."
Ignorance of key information --> Lack of correct understanding or knowledge of engineering, supply chain, marketing, consumer psychology, etc leading to inaccurate understanding of Tesla's monstrous competitive advantages. Lots of people in the finance industry went to school mainly for the connections and credentials and it seems a majority went straight into finance without gaining any experience in business operations first. I know this because I went to Vanderbilt which is a top Wall Street recruitment school and I met many of those students. Unfortunately, most of them were the type to look up the homework answers online and use test banks to study for exams instead of actually investing in doing the work the hard way. Or they chose easier majors than engineering. How could the analysts evaluate Tesla's trajectory without understanding what Tesla is doing and why it's been working this far?