I would be very careful using the word "scam". In my book, a "scam" is a deliberate attempt on fooling somebody to give away their money on false promises, such that the victim gets nothing in return. While one may argue that people are being fooled to buy overpriced overhyped Tesla stocks, the Tesla is a real thing and hence not a scam.
Thanks for the comment, it allows me to clarify my point a little more.
Your are correct, Tesla is not a scam. They provide a product and as far as I can tell they seem to deliver more or less what they advertise. And a as a consumer, there is nothing wrong in buying their cars.
The scam is several left/green lobbies and governments trying to waste public resources to generate an artificial transition to E-mobility. This is a scam because they are fooling us to believe this would be good for the environment, when it is only good for car manufacturers. If this is deliberate or due to a lack of understanding I cannot judge, therefore it is important to speak out against any such attempts.
I often say that it's hard to judge if the politicians are corrupt or "just" incompetent ... but neither "incompetance" nor "corruption" is the same as "scam".
I agree quite that it's madness to subsidize electric vehicles - like they are doing here in Norway (Tesla has become really big here due to that). I'm quite sure the environment had been better off had the money been used for promoting biking or other greener transportation modes.