[PaulDavisThe1st]

You're missing the point. It's not about whether people who do not live in X should be able to vote in X. I think most people would agree that they definitely should not.

It's about whether the people currently living in X should be able to arrange things so that certain other groups of people will be impeded from living in X in the future.

There's clearly room for some debate there: most people would agree that nations can set their own standards for immigration and that these may exclude large classes of people.

However, if a town explicitly said "we do not want anyone who earns less than 400% of median household income to move here", I think that most people would find that at least a little troubling.

There really are not any mechanisms that would allow a US municipality to say that explicitly. However, things like zoning laws can be used to go fairly far in this direction in a more implicit way.

I think that's wrong.