What % of west Texas power comes from wind? A good bet is that even if they had the capability to supply 100% 24/7 of their load demand with wind they would still need 100% conventional backup.
You are missing the point here. A big reason we are in toruble now is that we have relied on too few power supply technologies for too many years.
The key is to mix a number of technologies and use the best features of each, all working together.
Wind is a viable and proven part of that mix.
In the end it all comes down to this, we must learn to live with less.