Tesla may very well go to the wall. There are many automotive leaders over the years who failed to survive.
Hispano-Suiza (ended up building turbines), Argyll (twice), Jowett, Jensen, Lea-Francis, Armstrong-Siddeley, Bristol and more recently, Lotus.
Then there were all the others who were unable to exist on their own and were absorbed by big manufacturers such as Bentley, Riley, Wolseley et al.
All of these were, and still are, motoring milestones. leaders in innovation in automobile engineering. Just because they failed to survive doesn't mean they are any less worthy. And Tesla, whether they fail or survive, should be treated with the same respect.
If Tesla hadn't come on the scene we would still only have a few 80 mile range Nissan Leafs and Prius and Insight hybrids. Tesla took the EV idea, ran with it, and dragged all the big manufacturers into the 21st Century. I'd like to see them survive, if for no other reason than we need dreamers to push technology and engineering forward, and to shake some life into the fuddy duddys who want to live in the past.