I agree with you that most people will buy a Porsche if its similar specs and price (even a little higher) compared to TELSA
My Porsche driving friend is saving for a Tesla...
My wife promised to buy me a Porsche when I turned 50. I revised that agreement a few years ago when the Tesla Model S was released...
We drove silently past a Porsche sedan in the local market parking lot and laughed that someone would spend that money when they could be driving a Tesla.
Tesla is the best selling car in it's segment (large premium sedans) in California, outselling all competitors combined.
It's not a matter of the competition not caring, it's that they don't know how to compete yet, and have enough profit on other segments that losing market share in the top premium segment is not too bad yet.
Everyone that has had a ride in our Tesla asks the question "when is the cheaper one coming out?". When 500,000 Tesla's are selling per year, the premium auto makers might care, especially when they continue to lose thought leadership and become yesterdays news.
But right now, VW/Audi/Porsche has larger things on its mind, namely, the fact they need to fix millions of cars that have been polluting 40x more than the EPA standard. The recall maintenance (reprogramming) will result in a less powerful and less efficient car than the owner had prior to the fix. The owners of those cars got screwed by a cheating company who cared nothing for the environment, and only for profit. 40x the emissions of smog producing chemicals! 40x!