No car has a net positive environmental impact.

Some more than others. If pollution credits are sold, buying a Tesla just allows someone else to buy a pas guzzler. If Tesla kept them off the market, buying a Tesla actually reduces air pollution.

Or using money from carbon credits to develop their EVs so far ahead that legacy auto has no chance to be competitive...

if Tesla didn’t sell pollution credits to the highest bidder, someone else would be selling pollution credits to the highest bidder. I'd rather have Tesla make money off of them!

Not at all. Tesla could keep them off the market, which is consistent with their mission statement.

Most countries have a deadline for gas guzzlers anyway

Government action = gud

Tesla benefiting financially (paying for R&D) from said government action, as intended = bad

???

The mental gymnastics, I swear.

Tesla keeping pollution credits to themselves, off the open market = good

Telsa selling pollution credits to competitors to stall their EV programs = bad

Lmaooo those poor manufactures have their EV programs stalled by tesla :((

Resale is EXACTLY the purpose of carbon/emission credits