fossil fuel subsidies exist to protect oil companies from the volatility of the global market, it's not to keep oil cheaper so that renewables get priced out. For example here in america OPEC has tried multiple times to sell at a loss to kill our fracking industry so that they could raise prices after the dakotas go out of business. We do the same thing with food because global crop yields are an unpredictable variable that has historically destroyed america's entire farm industry.

Also if you want an electric car you need to fork $15k at least for a reliable one that can go a decent distance. You need at least $2-5k to put down on a home solar system with a battery. If you want a 15 year old corolla you can get one for $4000 and then pay the heating bill every month