Sorry, but forecasts show that electric vehicles will still represent a small percentage of the total of global/U.S. car sales.
"The number of EVs on U.S. roads is projected to reach 18.7 million in 2030, up from 1 million at the end of 2018. This is about 7 percent of the 259 million vehicles (cars and light trucks) expected to be on U.S. roads in 2030. "
https://www.eei.org/resourcesandmedia/energytalk/Pages/Issue-In-Depth-11-1-2018.html#:~:text=Additional highlights from the EEI,on U.S. roads in 2030.
Your statement hold very little merit, especially considering that the dated 3rd generation IS has been around for 7+ years and yet it's still competitive sales wise in the luxury small car segment.
Also take a look at Infinti's archaic Q50, which has also been around for 7+ years, but has the 3rd highest sales numbers (YTD 2020) in the luxury small car segment.
Acura ILX - 2,741
Acura TLX - 5,484
Alfa Romeo Giulia - 1759
Audi A3 - 2,238
Audi A4 - 3,950
Audi A5 - 5,320
BMW 2-Series - 1,772
BMW 3-Series - 10,613
BMW 4-Series - 2,198
BMW i3 - 64
Cadillac ATS - 47
Cadillac CT4 - 40
Cadillac CT5 - 3,000
Genesis G70 - 2,074
Infiniti Q50 - 5,575
Infiniti Q60 - 927
Jaguar XE - 0
Lexus CT - 0
Lexus IS - 2,712
Lexus RC - 757
Mercedes-Benz A-Class - 3,698
Mercedes-Benz C-Class - 6,856
Mercedes-Benz CLA-Class - 3,279
Volvo 60-Series - 2406
Furthermore, keep in mind that the average Lexus buyer is a loyal lot & they tend to keep their Lexus vehicles more so than owners from other luxury car brands.
"Lexus has two cars that made the list. The Lexus IS 300 came in third place and the Lexus GS 300 came in seventh place. Both of these
Lexus luxury cars were sedans, and the latest models of these cars are currently starting in the $40,000 to $50,000 price range. iSeeCars says that about 8% of IS 300 owners were long-term owners, while 7.1% of GS 300 owners were long-term owners.
https://www.motorbiscuit.com/these-are-the-luxury-cars-people-keep-the-longest/
5. Lexus (Average 6.8 years)
Lexus is known for their reliability and high resale value, but also has a reputation for offering the latest in safety and technology. We found Lexus clients tend to upgrade after 6.8 years with 28% keeping the vehicle for over 10 years and 49% replacing it in under 5 years.
https://cartelligent.com/blog/how-long-do-people-keep-different-car-brands/#:~:text=Lexus (Average 6.8 years),it in under 5 years.