I think people should buy what they need and understand the consequence of the decisions they are making.
I think the goal should be to reduce our impact/carbon footprint and still enjoy a decent life.
The solution will be different for each of us.
I have friends and family that don't use disposable shopping bags, disposable diapers, bottled water etc... They buy organic, wear eco-friendly clothes and shoes, belong to all sorts of environmental groups, yet they drive gigantic SUV's, regularly eat food shipped half way around the world, live in McMansions etc... I chuckle when they point out my foibles and treat me like an eco-terrorist. I'm willing to bet my impact on the planet is smaller than theirs.
Just do what you need to do, be mindful of the overall impact, keep seeking the minimum and remember all roads eventually lead to the cemetery
I'm done ranting and raving for now