Then these governments have forgotten that they serve at the pleasure of the people. We permit them to exist specifically for the purpose of protecting our rights, not expanding their own. The rights we possess are inherent and automatic because we're human beings, they are not granted by government or anyone else, and if a government fails to aid us in preserving them, that government is no longer legitimate.
Jefferson said all this far better than I ever could:
"We hold these truths to be self-evident, that all men are created equal; that they are endowed by their Creator with certain unalienable rights; that among these are life, liberty, and the pursuit of happiness; that, to secure these rights, governments are instituted among men, deriving their just powers from the consent of the governed; that, whenever any form of government becomes destructive of these ends, it is the right of the people to alter or abolish it."
We live in an era where increasingly it is the government who picks the voters rather than the voters picking the government. Whether it is through immigration policy, favoring certain areas over others, or trying to throw up restrictions on voting, across the political spectrum there is a dedicated effort to shape the electorate to be friendly to those in power remaining in power.
Selectorate theory (which is described for the lay people in "The Dictator's Handbook: Why Bad Behavior is Almost Always Good Politics") talks about your points: picking voters through (a) immigration policy (b) restrictions on voting, etc.
Jefferson said all this far better than I ever could:
"We hold these truths to be self-evident, that all men are created equal; that they are endowed by their Creator with certain unalienable rights; that among these are life, liberty, and the pursuit of happiness; that, to secure these rights, governments are instituted among men, deriving their just powers from the consent of the governed; that, whenever any form of government becomes destructive of these ends, it is the right of the people to alter or abolish it."