"...No to fossil fuels' and 'Just stop oil'. And then what?"

Well for the working people in the UK a shortage of oil and gas means increased transport charges to get to work, rocketing food prices because production and transportation prices have gone through the roof and getting home to find a freezing welcome and no cooked dinner because the power's been disconnected as they couldn't afford the last heating bill.

- Its more than just "a big ask": its suggesting they volunteer cheerily for very real and unending misery to support an abstract idea.
The wealthy and ruling classes certainly wont be suffering: they will make sure of that.