Your statement contains a very large assumption. Perhaps you intended to make it, perhaps not.
Expatriots who've renounced - that I know of - have not "turned against their country. They would tell you that their country has turned against them.
I've not renounced and have no plans to do so, but I can assure you that my country has turned against all producers - in fact, all citizens - in fact, it:
has imposed usurious taxes without representation
has squandered the revenue that comes it
has debased our currency so that it is difficult to make it on one salary without becoming a ward of WalMart
has made us into a nation of potential terrorists that must be radiated, has circumvented the Bill of Rights
has violated our privacy through intercepting our phone calls and emails without legal justification
has ruled by fiat, instead of law
hs done away with Habeas Corpus rights, if they declare you don't qualify
has made asset forfeiture/seizure without court order or crime commonplace
has impoverished our nation through national debt that cannot be repaid
has driven business from our shores and with it, jobs
has passed so many laws, regulations and requirements by decree that no citizen knows if he is in violation of the law
AND SO MUCH MORE
The idea of America lives on, but in practice, the very foundations that created our nation and were enshrined in our Constitution are being eviscerated daily.
That some leave in pursuit of the original dream of America: freedom of opportunity, privacy, reasonable taxation, pursuit of happiness, in places where it yet lives, does not surprise me.
Nor do I condemn them for pursuing the dream of America while it grows dim here on our shores. My relatives did the same. Those who came with the Mayflower group, and those who fled totalitarianism in Europe during WWI.
AMPU
We haven't learned how to fix miserable yet.
Agree with you 100%.
Many overlook the fact that some may well leave America because they are more American than America herself, at least the current one.
Indeed America was borne out of a rejection of the things this weird new country is now fast becoming —these enlightened people a type of new Mayflower Diaspora.
TOUGH LOVE —A HARBINGER OF THINGS TO COME.