It's only the federal government that haunts US citizens for life, no mater where they live or what countries grant them citizenship. Even after renouncing citizenship, the IRS will go after all sorts of income regardless of where or when it was made. The IRS also applies estate tax laws to expats, as if they committed suicide rather than moved to a new home."The process of renouncing one's citizenship is currently absurdly arduous and expensive."
Don't want to get off the subject but you have two citizenships. State and federal.