I would consider renouncing, not for tax reasons, but for moral reasons: my country, the USA, has killed tens of millions of innocent people since the end of WW2, and made multiples more crippled and homeless. These are people who have never harmed the US, people who live in countries that do not want to be governed by the US. They were Iranians, Guatemalans, Chileans, Vietnamese, Iraqis, Afghans, Cubans, Venezuelans, Nicaraguans, and many others. I am ashamed of what my country has done and is now doing. I am ashamed of my country's meddling in Ukraine and Taiwan. I am almost 90 years old, born in New York City in 1932.