Maybe someday when we can generate 100% of what we need from renewable sources - but we aren't even close to being there yet, and in the meantime, people still need energy.
Furthermore, if you live in a country where electricity produces very low amounts of carbon ( like France or the Nordics), it already makes sense.
IMO, money and effort would be much better spent modernizing and insulating homes and replacing really old appliances (including furnaces and boilers) and thus reducing the overall demand for energy - regardless of the source of the fuel. Reducing the need is hard to argue with - changing where it comes from - when very little comes from renewables doesn't even move the needle.
Yes.
The precise details will vary by location, but for example this was a very common argument used against EVs, they're just coal powered cars! So the Union of Concerned Scientists did reports on exactly how bad an EV in specific locations would be, and even in highly coal dependant areas, it was still better, today, and would only get better as the grid gets greener.
https://blog.ucsusa.org/dave-reichmuth/are-electric-vehicles...
Lots of people seem unaware that heat pumps are about 4x the efficiency of even modern gas heaters, so just burning the gas in electricity generators would be enough for us to cut out all Russian imports and more.
You are right that insulation, and efficiency are important (e.g. it makes sense to insulate your house properly when planning a heat pump install, and the oldest and least efficient boilers should be targetted first for upgrade) that was part of my point, see the link to the Energy Saving Trust who have in depth details on exactly which things help the most and cost the least, and look up your local equivalent.
Increasing demand for electricity is absolutely essential to convince politicians to back the scale up of the grid that will be needed as more people have electric cars and home heating systems.
Buying electric everything today creates demand that forces the hand of people debating installing new natural gas infrastructure that will be used for 80 years, or finally saying that it isn't worth it because a high percentage of people switched to electric and we can't justify the cost anymore for a few holdouts on gas, we just force the last few to switch to electric at that point.
All that being said, today people are dying, and Europe is afraid to do much about it because everyone has been increasing natural gas use to offset coal, it was a cheap solution to part of the problem.
We might not agree that resisting Russian expansionism is an important short term objective, but I believe we need to start acting like Russia rewrote the world order a few days ago and we can either fight that or roll over.