Re: European HQs
So those voting against the London elite will have just made 'em a big gift?
Also, while a country with just a few million people (less than London alone, usually), can drop taxes a lot, countries with tens of millions of citizens (and no oil/gas/gold/etc. to get easy money from), can't usually drop taxes too much without cutting expenses a lot too. Offering services to that number of people, with a large percentage of elderly ones, maybe a large number of unemployed people, has a huge cost.
Ready to say goodbye to NHS, free schools, etc. etc. ?
Sure, banks executives may stay there and live like pashas. The gain for those not so lucky?