I completely agree that in terms of nefariousness of industrial facilities, wind turbines are quite ok (in comparison with other energy infrastructure). But since you're talking about what they
replace, i can't help but mention that they almost never replace anything, they're meant to absorb growing demand. That's the single biggest argument for global critics like degrowth: we always talk about switching to better X, but most of the time we also keep the old ones running. We typically picture coal usage as having peaked in the 19c with these images of london in smoke, but in fact it has never been as high as say last year (i didn't look at the numbers, but its basically a steady upwards trend for every primary resource since 200y). Rule of thumb your energy consumption is proportional to your GDP (it's actually pretty accurate).
So that's why, sure, wind or renewable (or even nuclear to some lesser extent) is better than fossil in some ways, but this in itself, in our current system, won't translate to much unless our prime effort goes to first maintain consumption at a steady level and then actually reduce it.
But i'm getting a bit off-topic! :)