I dont think you know what the word practical means. I make a living with art. I sell ideas, expressions of abstract feelings, things for your brain to enjoy. It has value, but not a practical one. Its not a tangible benefit, its not feeding the hungry, its not sheltering the homeless, its not moving people where they need to go, its not supporting anyones physical life. I have great respect for those doing practical work, theyre who solarpunk need. Otherwise your utopia will stay imaginary and theoretical.