Your facts are all wrong and
Your facts are all wrong and still wrong. The most expensive prime is the XSE PP ($52K) is still not 50% more than the base Model Y ($59K) even with the $7500 tax credit for the Prime - which is about to drop to 50% in June.
I own both cars - both are amazing. Your reporting and facts are shoddy - that's all.
And your markups for the Prime... way too low of an estimate. When used Primes sell for $5K-8K over MSRP and do not qualify for the tax credit, you are underestimating real world dealer markups. The best deal I got (which I bought) was $4K in dealer add-ons. $5K-10K is pretty normal. Same with the Mach-E.