Nope, heat pumps are cheaper and more efficient. Insulating did not even make a dent in reducing emissions in Germany after years of trying.
Whataboutism about cold related deaths doesn’t change anything about the heat related deaths. Did you know the Philippines lose fewer people to heat than Europe, per capita? They have AC.
Again, you’ve been misinformed. Please research the subject, use an LLM, whatever you need. The information is right there.