I think you misunderstand the parent post, HOAs are actually a perfect supporting example. Even the most tyrannical HOA rule isn't actually that bad, because you can just move a few blocks away to a less-strick HOA or a house with no HOA at all.

However, if a law is passed at the federal level, you're pretty much stuck with it. With local (or hyper-local like HOAs) you can vote with your feet by moving.