You can make plenty of money on something that isn't mature yet. Defense contractors bilk earn billions by selling, maintaining, leasing etc unready products to the government. In the news now Boeing has made billions off the 737max, the list goes on and on. Hell Hertz makes money renting some of the shittiest cars made, some so shitty that they only sell as fleet vehicles.
I mostly agree with you that EVs aren't ready to be thrust upon the public, except your reasoning is about as well thought out as that of a 3 year old having a temper tantrum that just happened to want the proper thing by chance such as his diaper emptied.