Why do you say degrowth = lower quality of life?
Let me give you a simple and practical example: an American living in a suburb takes her gas-guzzler 3-ton SUV to go shopping or to the park, stands in traffic in a 4-lane freeway for one hour. A Dutch living in a suburb takes her bike to go shopping or to the park, rides it through a nice street for 10 minutes. The former consumed much more resources than the latter. Who has the better quality of life?