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.