One acre in the Crawford area is tiny - her post makes it seem as if the President has only one or two neighbors in the area and one of them hates him so much that he is donating land to the cause.
In reality it's one crank among thousands of citizens, and a crank who owns, comparatively, a postage stamp of land.
But there are still a very large number of people in Texas who hate Republicans because Abraham Lincoln was a Republican. The few KKK members I've met were all Democrats.