It's funny because, if anything, this post highlights the futility of consumer-level actions. One corporate action can have the effect of all individual actions of thousands of people over their entire lifetime.
I somewhat understand the nihilism at play here, but it's not like those trucks exist absent consumer demand. They aren't driving around for fun!
It doesn't matter that you are not giving the company money anymore, until enough people independently make that decision and then it starts mattering. This is a thing that happens in every economic sphere.
On the other hand, consumers have little control over businesses. I'd be fine with eco friendly delivery, eg more wait time to minimize trips in the neighborhood, electric cars, etc. Most of the time I'm sitting on a full online cart for days, and removing stuff I don't really need until I'm happy with the order: I can wait.