If white separatists want to create a town for themselves, that’s fine with me, so long as they abide the law. It’s a free country.
In principle I agree. After all, we're conservatives here and we believe in private property and the right to free association.
I'll go a step further... since I've been attacked for supposedly being Jewish, I'll point out that there are already a number of communities where Orthodox Jewish people have done something somewhat similar to this. That's fine with me. Such communities have developed openly with fair prices being paid on the open market by people who are open about their desire to live within walking distance of their synagogue and in areas where they can encourage and support their communities’ distinctive religious practices.
Other groups — the Amish, for example, or the Maharishi followers in Fairfield, Iowa — also have reasons for wanting to live in close proximity to each other and have informally done similar things.
But read the article. What these people are trying to do in Leith is different.
Two of the key differences:
1. Up until very recently they were acting in secret without the knowledge of the current residents of the community where they want to move.
2. If you read the articles I linked, you'll see that they are advocating a takeover of the town government and passing clearly unconstitutional laws including arresting people with whom they disagree.
More could be said, but acting in secret and putting plans for town takeovers on radical racist websites where they propose arresting those with whom they disagree is not the right way to do things. In fact, the secrecy indicates the weakness of this group. If they had 50 or 100 people willing to buy property in this town, they could have gotten most of what they wanted on the up-and-up.