I making people think about their environmental impact when they are shopping online is not a popular option here.
If you live in a big city, and travel to work, you would have ample opportunity to buy stuff on the way and back. This is what I do, but then I bike and actually give a shit about stuff like this.
Every living creature on Earth makes an environmental impact. I'm not against activism, but I recognize that environmentalism is simply about drawing the line somewhere—it's unrealistic to expect humanity or individuals to have no environmental impact. An argument saying "buying your toothpaste from Amazon is bad for the environment" may be true, but I can one-up you by saying "killings flowers to clean your teeth with is bad for the environment." It's not about "environment haters" vs. "environmentalists," it's about where you draw the line.
If you live in a big city, and travel to work, you would have ample opportunity to buy stuff on the way and back. This is what I do, but then I bike and actually give a shit about stuff like this.