re: Forever and ever
There's the small issue of transmitting that power out of the cornfields to someplace it can actually be used. You can yell "new infrastructure" all you want, but that isn't going to change the laws of long-range energy transmission. Offshore windmills make more sense since they're closer to major population centers, but you still can't run a high-tech society of 300 million people off of wind. You can maybe run tiny Scandinavian nations off of wind.
The "70s reactionary dogma" is the reason we don't have nuclear power supplying most of our electricity.