A lot of us, maybe. But my impression is that a lot of us also choose to consume more stuff more frequently (larger vehicles and homes, less durable items replaced more frequently, etc). I would not be surprised to learn that our direct energy use - such as vehicle fuel and electricity for heating - has increased with longer commutes and larger homes.

Compared to just 50 years ago, I would say that our lifestyles are on average vastly more consumptive, despite being more environmentally aware. We seem unwilling to make the sacrifices that really matter.

I think that some time in the future, our time will be seen as one of massive entitlement. As technology makes things possible, we feel entitled to make use of it if we can afford it. How many people in the 50's were using trucks to drag boats and horse floats around in the suburbs? These are the kind of reasons people will give for their consumption. e.g. "this is the lifestyle I want, it's possible, and why am I not entitled to it if I can afford to pay for it?" (in the financial sense only of course).