I wouldn’t go that far. Tesla’s build quality, when compared to German and Japanese cars, is still absolute garbage. Especially at the price point.
The only advantages Tesla has is their software and supercharger network.
I have been hit and miss with Japanese and German cars. Japanese cars: 2003 Infiniti G35 Coupe and was the best car I have ever owned bar none. 370Z was a mixed bag. Mazda MX5 Club. Will miss it. great car for the right season (snow is even fun with the right tires) Can be a bit of a hard ride with a good amount of wind noise with top up. Overall, a very good car. Selling to buy the MS. Only so much room in my garage
German: Mini Cooper S was complete junk. Bad build quality, expensive parts, and terrible service. Z4 nope. Poor quality, not near as fun as My MX5 Club. Mercedes E Class had several oil leak issues never resolved to the point of just trading it off.
British cars: F Type. A bit over priced and some poor build quality with some cheaper interior materials with a good deal of service needed often.
Lotus Evora: build quality? Hand made with lots of "must have been built on Friday" issues, but nothing wrong with the drive train with over 10 years of ownership.
Italian. Fiat 500. Junk. Junk. Junk. did I say junk? because I think it was junk. At least the parts were cheap.
Was close to a McLaren Purchase. 720s in the showroom unable to open door because it would hit the front fender and hood. Panel gap is definitely "a thing" with McLaren. Was not in the market for the 720, but was really there to look at a MP12C. Was warned repeatedly to buy extended warranty for $4k a year for a car with 10k miles. Warned if tracked warranty is void. McLaren: Please don't drive your racecar like a racecar.
Host of American cars with varying degrees of satisfaction.
Only Tesla I have owned (still own) is a 2020 Model 3. So far after 45k miles not one issue. Panel gaps good but paint might be a bit thin on the bumper.
I guess its all up to a persons experience with specific cars. To me the German car quality is more myth than anything else, but of course that is my limited experience.