Climate emergency became a divisive political issue many years ago, and you know how stupidly ends when this happens.
Also, we’re becoming an society of old peoples, and people tend to be from skeptical to averse to everything born after their 40th.
Furthermore, cars and its dirty ICE mechanics is still deeply felt as something epically manly, which again triggers many middle aged man feeling the EV a blasphemous attack to their inner self.
In brief: it’s just the fucking reactionary boomers fighting back as hard as they realize their way of life is dying.
The reason is avoiding doubling the the battery needs (car+house) when solar panels are available. A modern compact house with proper insulation and heat pump needs overnight less then 20 kwh in the worst winter days. Being able to use one quarter of the battery when the sun is down, recharged the day after, would be really money and environmentally effective. Why buying a fixed home battery like powerwall in a future where most of the time at least a mobile battery (a car) would always be connected to the home grid?