Wind turbines are not recyclable[1]. Besides, the foundations use a massive amount of concrete (nowadays often extracted from the seabed, with all the problematic ecological consequences involved), that stays forever in the ground.
Existing wind turbines turbines are not recyclable - new wind turbines are.
Except, that's not even true. Some existing wind turbines are not recyclable.
Except that's not entirely true either! The tower portion of the turbine is usually steel, and easily recyclable! The nacelle, too. It's the base and the blades that can't be recycled.
Except that's not entirely true either! Existing turbine blades are made (mostly) of fibreglass, which is made of the fibre and the resin. The fibres aren't reliably as strong when recycled (which makes them not-very-useful when recycled), but the resin is just fine. And of course, if the blade is e.g. carbon fibre, then you can either re-use it or just burn it.
So, you statement should be that some (components of) existing wind turbines cannot be profitably recycled with current technology.
The wind turbine's concrete base doesn't need to be smashed up or ignored, incidentally - it can be re-used. Concrete is much sturdier than the e.g. gearbox.
None of this is economically profitable, which is why right now it ends up in massive landfils. The concrete base is reinforced with steel beams and weights so much that you can't move it.
Also sorry but I would require a citation for "new wind turbines are recyclable". That the tech exists doesn't mean that all installed turbines have it.
Concrete recycling is actually a pretty big deal. For most of building history here the standard material to put behind basement walls, retaining walls, and so on, for drainage was crushed scoria. Now it's crushed concrete. Some amount of effort but you're recycling existing stuff, and they recover the reinforcing steel as well.
Who cares? Those blades and that concrete are totally inert and just sit in the ground after their useful life. The ground already has lots of rocks in it.
The problem is that those power sources are marketed as "renewable" (they aren't as they quickly end in landfills), are intermittent, require fossil fuels for when the wind doesn't blow, and are not profitable.
One could also say that they change heavily natural landscapes, but this is a matter of taste.
Except, that's not even true. Some existing wind turbines are not recyclable.
Except that's not entirely true either! The tower portion of the turbine is usually steel, and easily recyclable! The nacelle, too. It's the base and the blades that can't be recycled.
Except that's not entirely true either! Existing turbine blades are made (mostly) of fibreglass, which is made of the fibre and the resin. The fibres aren't reliably as strong when recycled (which makes them not-very-useful when recycled), but the resin is just fine. And of course, if the blade is e.g. carbon fibre, then you can either re-use it or just burn it.
So, you statement should be that some (components of) existing wind turbines cannot be profitably recycled with current technology.
The wind turbine's concrete base doesn't need to be smashed up or ignored, incidentally - it can be re-used. Concrete is much sturdier than the e.g. gearbox.