Everywhere around the world, population density controls the demand for oppressive government, higher taxes, lower freedoms. People can't blare their stereos, barbecue a pig, shoot their gun at an annoying squirrel if they live in a Manhattan high rise, but have the freedom to do all these things if they live on a farm. Marketing methods for selling soap to different demographics leads to generalizations that are not useful when it comes to politics, and are often harmful.
Everything changes, your age, the climate, your neighbors. You can fight some of these changes but it becomes futile at some point. Fortunately, it's a big world out there. If you don't like how your local world has changed, just pack up and move to some other place where things are to your liking. Vote with your feet. It's far easier to move yourself than try to move 1 million new high density neighbors.
Eventually you run out of places to move to. That's the problem with "White Flight".