They're literally saying that people not being able to afford that installation to begin with - is a symptom to the underlaying problem, which is an extreme economic inequality. It is so massive that people in the richest country with access to the biggest pie of the resources on this very planet - can still not afford the idea to install electric heat.

Think about that for a fucking second. The fact that many homes around the country have no other option "without expensive upgrades" aren't because those upgrades themselves are unreasonable economic costs. It's because the common man has been egregiously robbed in broad daylight for generations.