While noble, it's pretty optimistic to think that if all consumers switch their personal appliances to electric equivalents then we can collectively mitigate greenhouse gas emissions. That seems a little like arguing that if we all bring our grocery bags to the store and quit using single-use plastic bags we'll save the world.
Petrochemicals are literally everywhere. We pave our streets with petroleum, we shingle our roofs with it. We fix more nitrogen via the Haber Process than every plant on the planet does naturally. We use petroleum to grow feed so every person can eat a pound of beef per day. Every time a consumer switches to an electric stove Facebook builds another AI data center that uses an entire city's worth of electricity to generate deepfake nudes and AI emojis.
Every rich techbro who buys an EV to fix climate change then turns around and books a roundtrip flight to Iceland for a weekend getaway, which emits more CO2 than driving even the worst personal vehicle for a year.
There's simply no way that humanity is going to reduce their energy consumption. We will use every last watt from every last source, and when we've finally exhausted one source we'll move on to the next.
Everybody spending all their money on EVs and water heaters will simply not move the needle. My apologies for being pessimistic, but my optimism died a long time ago - sometime when I realized that nobody would even try to eat less steak.
You're halfway right and halfway wrong.
Most of these new technologies won't take off on their own. You're absolutely correct. But they absolutely
can succeed with some fairly minor changes to incentives. It can be carrots or sticks. The impact is obvious to see when looking at the uptake across various places with different incentive structures.
We need to put an end to hydrocarbons going into the atmosphere. Absolutely. There are also many hydrocarbon based products (asphalt, plastics, etc) that are critical to manufacturing, and their emissions impact is quite low compared with some alternatives (steel, cement, etc). Heck, asphalt is one of the most recycled products in the world. Those who care about climate change care about the upstream impacts of these products (which are abatable), but don't care have any issue with the products themselves.
The long term success of all of these technologies relies on them claiming a couple percent of market share each year. Every major technological transition has involved a new technology that gains a bit of new growth each year. It took the automobile decades to displace horses, and it will take decades for low-emissions technologies to replace incumbents.
I have confidence that we will get there eventually (and way too late), as long as the growth rate for the underlying technologies grows slightly faster than their underlying market. Lobbying, incentives, consumer choice, and regulation will all
eventually follow that growth rate. Choosing to take part in growing these technologies is key to building traction, and it absolutely makes a difference. Particularly when you follow the flow of money from these choices.
Having high-income consumers make these purchases is how these markets start, grow, and position themselves for expansion. Without the 2008 Tesla Roadster, the 2025 Chevy Equinox would not exist. Now GM is either the fastest or one of the fastest growing EV brands in the US.
You are also wildly off on your air travel emissions. A ~7,100 mile flight is about 3.1 tons of emissions. A 22mpg car traveling 15,000mi/yr is about 7.6 tons of emissions. An EV traveling 15,000 miles per year at 3mi/kWh is about 2.5 tons of emissions at the US average electricity emissions intensity. Flight is bad, but not nearly as bad as you make it out to be. Some of this is my own math, but the coolclimate calculator (
https://coolclimate.berkeley.edu/calculator) is a good place to start.