I do not mean to undermine your distress, as I too hate populated areas, but you have free will. If it is not your property, then you haven't the right to dictate who builds on it or moves into your town/city. You do have the right to move, however, since you are now the one who is not happy with the new make-up of your community.
Why do those who already reside in a community so often feel that they have the right to determine the growth of that community? If townspeople want to leave "green space" then they can vote to raise their own taxes to purchase lots. The community dictating what happens with other people's property is Marxism and is essentially a partial taking of that property (inverse condemnation.
You would probably not advance the same argument about Marxism if a developer bought the land next door to you and then had the laws changed so that he could put in a sewage treatment plant, a landfill, a used-tire dump, or some other stinking atrocity that ruined your quality of life and compelled you to move. You might then say that such a thing should not be allowed and that the developer's right to make a profit stopped at the end of your property line. Yet this is essentially what is happening in Loudoun County. Developers are asking that sections of land zoned for agriculture be rezoned for residential or commercial development. They're asking that laws be changed so that they can make a profit at everyone else's expense. Their profit also requires local citizens to come up with far more money in property taxes to pay for the new roads and schools the developer's project will require.