I live in a 'green' electorate. Plenty of people around me do much of this:
- never fly in planes again
- downsize their dwellings.
- get rid of their cars and do public transport and cycling.
- become vegetarian and eat a large % of raw food.
- get rid of all ornamental landscaping and replace it with permaculture.
- get rid of their electric and/or gas oven and use a microwave only.
- have showers limited to 3 minutes and 30C water temp.
- get rid of their electric HWS and get on demand gas hot water like Rinnai.
Many of them live in modest houses that they have made as energy efficient as possible. They would shop often so they don't waste food. And they would walk to the shops. Most are single car families and make use of public transport, bicycles, and car share schemes like Go Get. Gardens tend to be productive, or planted with natives. All are gainfully employed. Labelling people like this as extremists is lame.
They probably have to do all this just to make ends meet.