French flocking to London for its favourable fiscal and regulatory climate

It is rational interests, rather than cultural affinity, that draw this type of Frenchman to London

writes The Economist in its article on The French community in London (Paris-on-Thames):

high-paid work, lower taxes (especially on wealth), and the chance to raise bilingual children. …

The superior beauty and efficiency of Paris often come at the price of dynamism. Many young French arrivals in London say they are fleeing rigid social codes, hierarchical corporate culture and a sense of distance from the global swirl of people and ideas.

…Many young French of African or Arab origin also say that there is less discrimination in Britain.