That isn't supporting Amazon financially, that's meeting people where they live in a world you don't control.
This is like saying I'm a hypocrite for using crosswalks if I also believe that our cities shouldn't be dominated by cars. If it's true, it's not true in a way that's interesting or useful. It doesn't suggest my views are insincere or without merit. Maybe my views do suck, and maybe the EFF sucks too, but you're going to have to do more work to establish that than pointing out that we're imperfect beings living in a world that may thwart our intentions. You'll actually have to engage with the substance of the argument and the facts in dispute, and make the case that there's a deficiency there.
This is like saying I'm a hypocrite for using crosswalks if I also believe that our cities shouldn't be dominated by cars. If it's true, it's not true in a way that's interesting or useful. It doesn't suggest my views are insincere or without merit. Maybe my views do suck, and maybe the EFF sucks too, but you're going to have to do more work to establish that than pointing out that we're imperfect beings living in a world that may thwart our intentions. You'll actually have to engage with the substance of the argument and the facts in dispute, and make the case that there's a deficiency there.