That train has left the station long ago. Killing EV was something feasible 20 years ago. Today the amount of investment and capability of the players involved is on a whole different level.
The oil companies couldn't stop Tesla or VW if they tried.
The billions of euros many of these oil majors are throwing behind renewable forms like solar, offshore wind, hydrogen, etc. would suggest that the idea this is a strategy to kill EVs is nonsensical.