This might be persuasive if the reports didn't indicate that substantially more non-doms are leaving the UK than expected. The options are not a binary UK or Andorra.
>>graeme+(OP)
There aren't many global cities that can compare. New York, Paris, Tokyo, possibly Seoul or the San Francisco Bay Area. Dubai isn't it, unless all you care about is shopping.
>>fmajid+th2
You still have not reckoned with the fact that they are leaving. Whatever else is true the non-domiciled have determined that "somewhere else" is more attractive than the UK without the non domiciled tax regime.