Tesla made long-distance driving in EVs possible. Tesla made EV sexy, desirable. It catalyzed the Chinese EV industry. Neither Nissan nor VW remotely accomplished those things.
Like someone else said, people think in terms of a pre-Tesla and post-Tesla world. I don't know that there's a strong case against that framing.
In EU environment movement is very strong especially in the rich countries. BYD is company from 95. They have been leading up to this for 30 years. If you take out the theatrics... it's actually China/BYD who are pushing everyone (especially EU carmakers) to EVs. If anything Tesla is on a trajectory of remembered as a one of car industry biggest disasters and wasted potentials.