First, just to be pedantic, EVs did exist first. They go all the way back to the early 1800s. But battery technology didn't advance enough to make them a good option until recently, so your point remains.

I fully agree with you that the only thing keeping gasoline going is inertia. There have been parodies applying the same logic to other fields, like the gas-powered phone.

There's a reason why 80%+ of EV owners say they'll never go back, and a good chunk of the remainder are just waiting on the field to mature a bit.