W hen Margot went to renounce her US citizenship earlier this year, she wasn’t able to do it in the UK, her home of 30 years. The waiting list to renounce US citizenship at the London consulate is more than 14 months. It’s a similar story in Sydney and most major Canadian cities. Many European cities currently have six-month waiting lists. A canceled US passport. Photograph: Michael Vi/Alamy So Margot found herself in the lobby of the consulate in Ghent, Belgium. One wall was covered by a picture of Boston Harbour, where she was born. The other had three portraits: Donald Trump , JD Vance and Marco Rubio, their faces glistening – to her mind, with sadistic triumph (the lighting may have been a factor). Momentarily, she felt caught in a vice: everything she loved about her nation; everything she hated. Then she went in, swore under oath that she knew what she was doing, wasn’t being coerced, and wasn’t renouncing her citizenship for the purposes of tax avoidance.…