but nearly two-thirds of all respondents considered cost as a barrier.
That's really the only thing preventing mass adaptation, but as long as they're so expensive (which they likely will be until we see a new battery technology) they simply aren't a viable choice for many people.
Many of the people who are willing to spend a fortune on a vehicle already get an EV in the last few years (which they still are using rn), resulting in declining sales. It is time to cater to a broader market: more budget conscious people!