You'd think so but that's not the case. Sometimes there isn't enough wind power in an entire continent to provide power, and this could potentially last for days, even weeks. It's simply not practical to use wind power as base load power.

If you look at the Netherlands, for example, you'll see that the way they've always used wind power is for pumping water (draining the polders). And there it doesn't much matter what the instantaneous amount of wind power available is, or even if the windmills are stagnant for a while. All that matters is that over a long period of time you end up with around the same amount of average power produced, and that's what wind power is good at. Potentially it would make sense to use wind turbines for powering specific sorts of activities that didn't rely on low latency of power production and could be automated (perhaps water desalination, for example). But using it as base power is a far more troublesome prospect than using solar.