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30 days agoMy wife and children have UK/US dual nationality, so we’ve run into this. What we do is carry both sets of passports, exit and enter the UK with British passports and exit and enter the United States with US passports. In our experience, the UK authorities don’t care as long as you’re legal and don’t give you grief, and the US authorities will usually be dicks to you for a bit but they do eventually let you through.
That said, we’re white. The position might be quite different if you’re not.
Well, anyone with a secret phone they’re e.g. hiding from an abusive spouse has had that blown, haven’t they? But at least they now know portable barbecues and fireworks are a Not Very Good Idea when the country is basically a tinderbox. So, there’s that.